Not for a second do I believe that all the TSA would be "unbiased". After all, I suspect that racist/tribalist hate is gaining adherents in the general population in America. And that will -- too often but certainly not universally -- be reflected by members of the government/government agencies.

There are plenty of hate campaigns in the world, but only one or two that seem to be politically acceptable in America at the current moment.

And about "we all know what the 9/11 terrorists look like". Apparently "we all don't". Idiots directed their vile "revengeful" idiocy and hateful violence at turbaned sikhs for crying out loud. Certainly not Arab nor muslim.

.... and it was such ignorant fools -- to say the least -- who claimed that "we all know what the 9/11 terrorists look like" and then attacked people of a TOTALLY different ethnicity.

There is growing level of publicly acceptable hate in America -- directed at people perceived, by the ignorant, to be "Arab" or "muslim". After all, "we all know what 'they' look like". That such "popular sentiment" would be exhibited at airports is not a shock. (That said, if something like 9/11 happened in most other countries in the world, there would have been some massive and violent human rights abuses "at home" -- perpetrated not only by thugs on the street but also by the government.)

Wrong. "Something doesn't always need to be done" is right often enough. "If it ain't broke, don't 'fix' it."

Sometimes doing "something" is worse than doing less (far less, including "nothing"). (See prior paragraph's last sentence.)

Something doesn't always need to be done.