Carl Simpson, a/k/a Shawn Davidson, appeals his convictions for unlawfully possessing a firearm, in violation of 18 U.S.C. § 922(g), and attempting to board an aircraft with a concealed weapon, in violation of 49 U.S.C. § 1472(i). Finding that the trial court committed prejudicial error in admitting certain evidence, we reverse.
I.
On April 22, 1989, Simpson, along with three companions, entered the North Terminal of Washington National Airport, headed for the gate to the Pan Am shuttle flight to New York City. To reach the gate, the group had to pass through a security checkpoint consisting of a magnetometer and an x-ray machine. The rest of the group passed through the checkpoint without incident; Simpson, however, was not so fortunate. To get through the magnetometer, he was forced to empty his pockets, revealing over $450 in cash. An x-ray of two shopping bags that he was carrying revealed a suspicious looking metallic object. Security personnel emptied the bags and searched the contents. They discovered a fully loaded and cocked .25 caliber Beretta pistol wrapped in red cloth and tucked in the pocket of a pair of pants. Unaware that the gun had been discovered, Simpson admitted that the shopping bags were his. His companions quickly left and were eventually located at the departure gate for the New York shuttle. They were briefly questioned and then released. Simpson was arrested.
Besides the currency, a post-arrest search produced a small bottle of amyl nitrate (“rush”). A later search uncovered a trace amount of suspected marijuana residue in one of Simpson’s jacket pockets. 1 *156 Upon questioning, Simpson told police that his name was Shawn Simpson, that he was born -in Brooklyn, New York, and that he was a juvenile. Shortly thereafter, police determined his true identity to be Carl Simpson, an adult citizen of Jamaica.
In pretrial proceedings, Simpson sought to exclude from trial, inter alia, his Jamaican citizenship, the marijuana residue, the bottle of rush, and the currency. He argued that this evidence had little to do with the crimes charged, proof of which hinged on his knowing possession of a gun, and its admission would be unfairly prejudicial. The government contended that the evidence was highly probative because it would indirectly prove that appellant was in knowing possession of a gun by showing that he met the drug courier profile 2 and that drug couriers frequently carry guns for protection. The district court excluded the bottle of rush, but ruled that Simpson’s Jamaican citizenship, the money, and the marijuana residue were admissible.
At trial, Simpson’s defense was that someone else planted the gun in his shopping bag and that, even though he was entering the Pan Am shuttle gate area, he never intended to board a plane. This defense was not without support. At the time of his arrest, Simpson did not have a plane ticket and, other than the two shopping bags, he was carrying no luggage. The prosecution successfully pursued its drug courier theory of the case, introducing all of the disputed evidence. Over Simpson’s renewed objection,- an FBI agent offered expert testimony on the modus op-erandi of drug traffickers, and his opinion that Simpson’s possession of a relatively large amount of cash, a recreational drug (marijuana), and, of course, a gun, all fit the drug courier profile. He further testified that New York was a source city for narcotics, that couriers typically travel by air, and that they often purchase their tickets with cash. An airport security officer also testified that shuttle tickets can be purchased at the gate. On cross-examination, the agent admitted that there was no substantive evidence of Simpson’s having ever engaged in drug trafficking. In its instructions to the jury, the trial court cautioned that the drug courier evidence should only be considered as it pertained to the gun charges. Simpson was convicted on both counts.
At sentencing, Simpson moved for acquittal on the 49 U.S.C. § 1472(Z) conviction, contending that there was insufficient evidence to show an attempt to board an aircraft. The district court denied the motion and Simpson was sentenced to two concurrent 57-month sentences. This appeal followed.
II.
Appellant challenges the trial court’s admission into evidence of his Jamaican citizenship, the currency, and the testimony concerning the marijuana residue and the drug courier profile. He argues that, without any substantive proof of drug trafficking activity on his part, the government used this evidence to depict him as a drug courier and to prejudice the jury on the only contested issues of the case — his knowing possession of the gun and his attempt to board an aircraft. Appellant also contends that there was insufficient evidence to convict him of attempting to board an aircraft with a concealed weapon. We take up these issues in turn.
We analyze appellant’s challenge to the admission of the disputed evidence under Fed.R.Evid. 403: 3
Although relevant, evidence may be excluded if its probative value is substan *157 tially outweighed by the danger of unfair prejudice, confusion of the issues, or misleading the jury, or by considerations of undue delay, waste of time, or needless presentation of cumulative evidence.
As we have repeatedly held, the decision whether to admit evidence under this rule is one left to the sound discretion of the trial court. We will not upset such a decision except under “the most ‘extraordinary’ of circumstances,” where that discretion has been plainly abused.
United States v. Heyward,
This broadly deferential standard makes clear that we are reluctant to question a trial court’s judgment under Rule 403, and for good reason. “Trial judges are much closer to the pulse of a trial than ... [we] can ever be [and] ‘broad discretion’ is necessarily accorded them.”
Tindle,
In reaching this conclusion, we are mindful of the strong preference for admitting probative evidence, and that, in reviewing the trial court’s decision, we must “look at the evidence in a light most favorable to its proponent, maximizing its probative value and minimizing its prejudicial effect.”
Mullen v. Princess Anne Volunteer Fire Co., Inc.,
When coupled with other corroborating circumstances, the drug courier profile is a powerful investigative tool used,
inter alia,
to develop reasonable suspicion to support a
Terry
stop
(Terry v. Ohio,
This
de minimis
relevance was substantially outweighed by the highly prejudicial impact that the insinuation of drug crimes had in this trial. Of course, all relevant evidence is prejudicial; Rule 403 is concerned only with limiting “unfair” prejudice.
Mullen,
III.
The government argues that in the face of the convincing evidence of appellant’s guilt and the trial court’s limiting instruction, the error in admitting this evidence was harmless. We disagree. To be sure, errors under Rule 403 are subject to the harmless error test: “whether it is probable that the error could have affected the verdict reached by the particular jury in the particular circumstances of the trial.”
United States v. Morison,
IV.
We agree with the government, however, that appellant’s challenge to the evidence of his Jamaican citizenship and the substantial amount of cash he was carrying at the time of his arrest is merit-less. Removed from the drug courier context in which these facts were originally introduced, they easily pass Rule 403 muster. Both are highly relevant. The money shows that appellant had the means to purchase a ticket to board the Pan Am shuttle. Appellant’s Jamaican citizenship may show a manifestation of his consciousness of guilt when he lied about his true identity.
United States v. Kalish,
V.
Lastly, even though we reverse appellant’s convictions on Rule 403 grounds, it is still necessary to reach his claim of insufficient evidence of an attempt to board an aircraft. As the Supreme Court made clear in
Burks v. United States,
Even absent the improper drug courier evidence, the government showed that: appellant is a resident of the New York City area; he was apprehended while en route to the departure gate for the Pan Am shuttle to New York; he was carrying sufficient cash to purchase a shuttle ticket; after his arrest, the group he was travelling with went on to the shuttle’s departure area; and appellant lied about his true identity. Taken in the light most favorable to the government, this evidence is sufficient to show an attempt to board the shuttle. Thus, there is no double jeopardy bar to appellant’s retrial on the 49 U.S.C. § 1472(Z) charge.
VI.
In sum, we find that the trial court erred under Fed.R.Evid. 403 in admitting the drug courier testimony and that this error was not harmless. Accordingly, we reverse these convictions and remand for further proceedings.
REVERSED AND REMANDED.
Notes
. The amount of this residue was so small that it could not be field tested. An FBI agent testified at trial that the residue was "a greenish-brown leafy substance containing some stems and also some seeds" that was "consistent with *156 residue of marijuana.” The substance itself was not admitted into evidence.
. "A drug courier profile is 'an informally compiled abstract of characteristics thought typical of persons carrying illicit drugs.’ ”
United States v. Harrison,
. Appellant also challenges the admission of the drug courier and marijuana residue testimony as an abuse of discretion under Fed.R.Evid. 404(b). Because we find Rule 403 dispositive, we do not reach this issue.
. Appellant does not argue that this evidence fails to meet the threshold definition of “relevant evidence" under Fed.R.Evid. 401. Consequently, we assume that the drug courier testimony meets this liberal requirement.
. This is a distinguishing point between this case and
United States v. Hattaway,
The government’s analogy fails in at least one other respect. Unlike motorcycle gangs, drug couriers are not a cognizable group with unifying customs and codes of conduct that guide the way they operate. Thus, even if there were some corroborative proof that appellant was a drug courier, the government's reliance on Hatt-away and Harrell would be misplaced.
