It appears that it is, in the name of "national security." The article below comes from The American Thinker online.
TSA Now Storming Public Places 8,000 Times a Year
By Tara Servatius
Americans must decide if, in the name of homeland security, they are willing to allow TSA operatives to storm public places in their communities with no warning, pat them down, and search their bags. And they better decide quickly.
Bus travelers were shocked when jackbooted TSA officers in black SWAT-style uniforms descended unannounced upon the Tampa Greyhound bus station in April with local, state and federal law enforcement agencies and federal bureaucrats in tow….
