Well, if you're in the Mafia and you vouch for somebody that turns out to be an FBI agent or something like that, you end up sleeping with Luca Brasi.
Wouldn't it be nice to know who vouched for these foreign spies?
Knowing what a normal law abiding US citizen has to go through to get a clearance it makes me sick to know that they hand them out like candy if you know the “right” people.
Most of the people in DC would NEVER EVER pass a real background check.