Well, in a country with a for-profit, for-"performance" law enforcement system, where prosecutors are paid by how many people they put in jail and cops are paid by how many traffic tickets they write, do you really think some paper from 1787 is going to have much influence on a TSA agent if their paycheck depends on sorting out as many "bad guys" as possible?

The Canadian constitution (specifically the part of it called the Charter of Rights and Freedoms) guarantees the same right, however, constitutional rights in Canada are granted only up to "reasonable limits". Those limits are determined by the Supreme Court.

> people are free from unreasonable searches and seizures

I want to say "clearly you have never used US customs", though I suppose it's possible you have and you are just very lucky.

Oh you should try that at US border. Let us know how well it worked out...

Spoiler alert: If not cooperating, then BPO not friendly; Else, please proceed.