Oscar Muriel challenges the denial of his motion to suppress cocaine seized incident to a traffic stop and statements made to a police officer during the stop. He contends that the stop was not supported by probable cause and, in any event, was unreasonable in scope and duration. Because the arresting officer had probable cause to believe a traffic violation had occurred and because the officer did not unreasonably prolong the stop, we affirm the judgment of the district court.
I
BACKGROUND
On February 4, 2004, Indianapolis police sergeant Paul McDonald executed a traffic stop that led to the arrest of Mr. Muriel, the driver, and John Ramirez, his passenger. Mr. Muriel later was charged with possession with intent to distribute 500 grams or more of cocaine, in violation of 21 U.S.C. § 841(a)(1). Before trial, he filed a motion to suppress the cocaine and statements he made to Sgt. McDonald during the stop. He contended, in relevant part, that there was no probable cause for the traffic stop and that Sgt. McDonald had detained him longer than was reasonably necessary to issue a traffic citation or to check for outstanding warrants.
At the suppression hearing, Sgt. McDonald testified that he was driving westbound on the interstate when he noticed Mr. Muriel’s Jeep Cherokee tailgating another vehicle. The sergeant was driving in the left lane, and Mr. Muriel in the right; when Sgt. McDonald approached the Jeep, Mr. Muriel slowed down to about thirty miles per hour. Consequently, Sgt. McDonald had difficulty changing lanes to get behind Mr. Muriel’s car and he had to brake abruptly. Sgt. McDonald then initiated a traffic stop for following too closely and for reckless driving. The stop commenced at 2:28 p.m. according to the squad car’s video camera, which recorded the entire stop.
Sgt. McDonald testified that, as he approached Mr. Muriel’s car, his suspicions were aroused by certain features, such as the Illinois license plates, three police support decals affixed to the windows, a teddy bear on the dashboard and an American flag on the front of the vehicle. In his experience, Sgt. McDonald testified, such items are used to divert attention from illicit activity. Sgt. McDonald asked Mr. Muriel to sit in the squad car while he ran checks on Mr. Muriel’s driver’s license and registration. While Mr. Muriel was seated in the squad car, Sgt. McDonald asked him about his trip. Mr. Muriel stated that he was on his way back to Chicago from Columbus, Ohio, where he had been visiting friends for three days. Sgt. McDonald returned Mr. Muriel’s license and registration. While awaiting the results of the computer checks, Sgt. McDonald asked Mr. Muriel to wait in the cruiser while he spoke with Ramirez. Sgt. McDonald then asked for Ramirez’s identification and inquired about their trip. Ramirez replied that they were returning from Columbus, where they had gone for work related to *723 their landscaping business; he stated that they had left Chicago the day before and stayed in Columbus for one night. Sgt. McDonald decided to check Ramirez for outstanding warrants and returned to the squad car. On his way back to the squad car, he called for backup because he was suspicious of the inconsistent stories. Once in the squad car, he again asked Mr. Muriel where the two had been and pointed out the discrepancies between his and Ramirez’s version of events. Sgt. McDonald asked if there was any contraband in their vehicle, and Mr. Muriel said that there was none. The sergeant then asked for permission to search, and Mr. Muriel at 2:41 p.m. agreed. After finding two packages of cocaine under the rear seat, Sgt. McDonald arrested both men. The arrest occurred at 2:46 p.m.
The district court, after viewing the video evidence, characterized whether Mr. Muriel had been tailgating as a fairly close question. Nevertheless, the court credited Sgt. McDonald’s testimony that the gap between Mr. Muriel’s Jeep and the truck in front of him was closer than two seconds. It therefore concluded that the officer had probable cause to believe that the driver was following another vehicle more closely than was reasonable and prudent. The court also concluded that the officer had probable cause to believe that Mr. Muriel had acted recklessly in violation of Indiana law by slowing to thirty miles per hour on the interstate. Given the existence of probable cause, the court concluded that the officer had the authority to stop the vehicle. Relying on
United States v. Childs,
II
DISCUSSION
In reviewing the denial of a suppression motion, we review questions of law de novo and findings of fact for clear error.
1
See United States v. Banks,
*724 A.
Mr. Muriel first submits that the stop was not supported by probable cause and contends that the purported traffic violations were a pretext for stopping a car occupied by two Hispanic males.
2
The Supreme Court has held that the decision to stop an automobile is reasonable when the police have probable cause to believe that a traffic violation has occurred.
Whren v. United States,
The record before us supports the conclusion that Sgt. McDonald had probable cause to believe that a traffic offense had been committed. The Indiana Code prohibits following another vehicle “more closely than is reasonable and prudent.” Ind.Code § 9-21-8-14. Sgt. McDonald testified that the “two-second rule” prescribed by the Indiana Bureau of Motor Vehicles’ Driver Manual is often used as a measure of reasonableness. His use of the “two-second rule” as a guide for reasonableness comports with Indiana law; while the two-second “rule” may provide useful guidance, “[t]here is no rule, other than that relating to the exercise of reasonable care, which prescribes a distance that must be maintained between vehicles.”
Whitaker v. State,
In any event, Mr. Muriel’s slowing to thirty miles per hour on an interstate highway, under the circumstances described here, provided probable cause to stop him for reckless driving.
See
Ind.Code § 9-21-8-26 (prohibiting stops or sudden decreases in speed without an appropriate signal);
id.
§ 9-21-8-52(a)(1)(A), (B) (pro
*725
hibiting driving at an unreasonably slow rate of speed so as to endanger the safety or property of others or block the proper flow of traffic). Mr. Muriel’s insistence that his slowing down “is not necessarily reckless driving,” Appellant’s Br. at 8, ignores the applicable standard. Probable cause exists so long as the officer reasonably assesses the facts and concludes that a traffic violation occurred.
Cashman,
B.
Mr. Muriel next contends that the scope and duration of the stop were unreasonable. He submits that Sgt. McDonald im-permissibly asked questions unrelated to the purpose of the stop for the purpose of prolonging it beyond the point of reasonableness.
As we have explained earlier, the traffic stop was based on probable cause; the initial seizure was therefore legal. As the Supreme Court has reiterated recently, however, “a seizure that is lawful at its inception can violate the Fourth Amendment if its manner of execution unreasonably infringes interests protected by the Constitution.”
Illinois v. Caballes,
— U.S. -, -,
In this case, the traffic stop resulted in full custodial arrests after eighteen minutes. The more appropriate focus, however, is the time that elapsed between the initial stop and Mr. Muriel’s consent to search; consent renders a search reasonable under the Fourth Amendment unless given involuntarily, which Mr. Muriel does not allege.
See Schneckloth v. Bustamonte,
Viewed in its entirety, Mr. Muriel’s detention was not unreasonably prolonged by Sgt. McDonald’s asking a num
*726
ber of routine questions while conducting the business of the traffic stop. An officer conducting a valid traffic stop can detain the occupants of the vehicle long enough to accomplish the purpose of the stop.
See Caballes,
Mr. Muriel also seems to suggest that Sgt. McDonald’s involvement of Ramirez in the stop bears on its reasonableness. However, passengers may be questioned without reasonable suspicion.
Childs,
By the time Sgt. McDonald had completed his work on the traffic stop, he had, by virtue of the inconsistent stories received from the occupants, reasonable suspicion to inquire further. In any event, at that point, Mr. Muriel had given him permission to search the vehicle. The district court therefore correctly denied the motion to suppress.
Conclusion
Accordingly, the judgment of the district court is affirmed.
AFFIRMED
Notes
. Mr. Muriel was sentenced after this court's decision in
United States v. Booker,
A court of appeals may notice plain error even though the error was not brought to the court’s attention. Fed.R.Crim.P. 52(b);
see Silber v. United States,
Although Murphy has not directly challenged his sentence and Baker has limited her involvement on appeal to resisting the efforts of the government to reinstate her convictions, we think both, because they were sentenced under the old unconstitutional regime, should, in the interest of justice, get the benefit of the procedures we *724 recently announced in United States v. Paladino,401 F.3d 471 (7th Cir.2005), if they so desire.
Id. at 862. We thus gave the defendants fourteen days in which to notify this court whether they wished a Paladino remand. Id.
In this case, there is no need to ask Mr. Muriel whether he desires a Paladino remand. The district court sentenced him to 63 months’ imprisonment, the low end of the applicable Guidelines range for possessing 1.9 kg. of cocaine and three months more than the mandatory minimum. See 21 U.S.C. § 841(b)(1)(B). In the alternative, the district court considered the nature of the crime and the defendant's characteristics and noted that it would sentence him to the same term even if the Guidelines were unconstitutional. See 18 U.S.C. § 3553(a). We thus know that the district court would retain the 63-month sentence, and there is no need for a Paladino remand. Turning to the reasonableness of the sentence, we cannot say that a sentence only three months higher than the statutory minimum, based upon the factors discussed by the district court, is unreasonable. Thus, there is no plain error for this court to notice.
. We note that, although Mr. Muriel refers in his brief to the issue of whether "following too closely was merely a pretext for stopping a car with two Hispanic males," Appellant's Br. at 6, at oral argument his counsel agreed that the facts simply do not support a claim of racial profiling here.
