[steve-howard]

> In April 2012, during a joint operation with the Houston police and the local transit police, people boarding and leaving city buses complained that T.S.A. officers were stopping them and searching their bags. (Local law enforcement denied that the bags were searched.)

> The operation resulted in several arrests by the local transit police, mostly for passengers with warrants for prostitution and minor drug possession.

Not really meeting the criteria you're talking about.

[ubernostrum]

So someone should sue over that operation.

Meanwhile, universal searching (at first by metal detector, later by other means) of passengers at airports has long been held constitutional by courts; if they step outside the boundaries of what's permitted, you can haul them into court over it.

[nitrogen]

if they step outside the boundaries of what's permitted, you can haul them into court over it.

;..whereupon they will promptly grant themselves immunity.