[rolph]

i am familiar with a number of the security team personnel, so i can give you the inside perspective.

the reaction you provoke at a border crossing, or an LEO encounter is almost entirely based on what profile you fit.

the vehicle, the state/contents of the vehicle, what you say, even how you move, are being evaluated for consistency with a profile.

[seb1204]

This reads so vague it does not add anything beyond what 2 minutes of common sense thinking can produce.