Background checks ( of the TSA's depth ) don't reveal if a candidate is susceptible to blackmail or coercion, so physical checks are always a good idea.
After all it's not who you are but what you possess that constitutes a threat.
So what is the point of pre-"clearance"? Revenue, I suspect.
Background checks ( of the TSA's depth ) don't reveal if a candidate is susceptible to blackmail or coercion, so physical checks are always a good idea.
After all it's not who you are but what you possess that constitutes a threat.
So what is the point of pre-"clearance"? Revenue, I suspect.