From the same article:
* UPDATE – An anonymous reader writes in to say that the Aviation and Transportation Security of 2001 allows the head of the TSA can authorize TSA employees to have law enforcement powers. See Section 114(q)(1). The reader notes too that there seems to be no way for citizens to know how to distinguish rent-a-screeners from TSA employees vested with law enforcement powers.
That said, I’m still highly skeptical of TSA screeners’ powers to detain groups of individuals. That said, I am not a lawyer.
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http://www.wired.com/threatlevel/200...#ixzz13xkrAbmL
Exactly: how do you know that the TSA people ordering you to stop are actual law enforcement officers? I am inclined to ignore TSA "officers" telling me to stop where I am, but would obey a lawful request by an actual law enforcement officer.