As we have seen through history, many times, despicable acts of terror and violence have been committed by just "normal" unsuspecting people, that for whatever reason (hate, outburst of anger, mental sickness, etc) something switches in their mind and they commit these acts without anybody expecting it(they were a lovely couple, he was a quiet kid, he looked like a normal neighbor, etc)

This brings me to the point, when a passenger gets to the airport why would you allow one group to go trough a less meticulous screening (TSA Pre) if they could be carrying something harmful.

And if the TSA Pre group is still screened to some extent then why not use the same process for everybody else?

A person that was totally peaceful yesterday, today could want to do harm.

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    $\begingroup$ To an evil smuggler, airport security screening is just an inconvenience. To a terrorist, a security checkpoint is a convenient target. The TSA's purpose is to please the voters of the legislators who created the TSA. $\endgroup$ Feb 24 at 23:55
  • $\begingroup$ That is right, I remember what happened at Brussels airport in 2016, they didn't even had to go trough security, they did their thing right there. That's why I don't like agglutination of people, its the perfect target for terrorists. $\endgroup$
    – Gabe
    Feb 25 at 1:15
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    $\begingroup$ The idea that somehow a "normal" person "just suddenly flips" and commits a terrorist act is almost never true. Most terrorist acts are planned. $\endgroup$ Feb 25 at 1:33
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    $\begingroup$ @Therac - Prove it. Prove it to the security guy standing between you and the aircraft. That is what the precheck is for. $\endgroup$
    – WPNSGuy
    Feb 25 at 3:05
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    $\begingroup$ And my point is that everybody should NOT be playing at the same level because not everybody is the same level of risk. $\endgroup$ Feb 25 at 4:11

1 Answer 1


A person that was totally peaceful yesterday, today could want to do harm.

A person who previously went through and passed a security check is less likely to go off today.

Just like needing a security clearance for a job. Not 100% guaranteed to never ever go rogue, but less likely.

  • $\begingroup$ I don't buy this answer at all. People with a gripe can build up resentment over time and plan to commit atrocities later, E.G. Killdozer guy, Mandalay Bay guy, etc. Even the 9/11 hijackers had obviously cleared security before in order to get into the US. There's got to be another reason for pre-checks, IMO. $\endgroup$ Feb 25 at 15:52
  • $\begingroup$ @DannyBeckett The question did not ask for the reason precheck exists. Precheck exists to collect a fee. It's also a convenience for frequent fliers who are also frequent donors to political campaigns. $\endgroup$ Feb 25 at 19:07

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