note how TSA can't keep it's employee's payroll or personal info from being sold or lost. what happens when a massive, centralized database of personal info gets hacked into, or sold by a contractor because the bureaucracy is flooded with inept and or corrupt favor positions who are either ignorant of or complicit to what's going on. Best case- they'll say our bad and offer to pay a few months credit monitoring... more likely, they'll try to pretend it didn't happen until someone pieces together the link between massive increases of credit card fraud.....
other issues, will your risk assessment affect upgradability? Will you always be forced to the aft do to your dinging?
do you think that if you opt out of the program long enough, eventually they'll claim it's suspicious to face increased security willingly; I remember being told that AIT was only to be used for secondary screening when it first started...
Major Hassan had background checks as well