Trying to prevent an -extremely- unlikely event via a lousy ineffective attempt at prior restraint is worth treating everyone as a criminal, ignoring the 4th am

Trying to prevent an -extremely- unlikely event via a lousy ineffective attempt at prior restraint is worth treating everyone as a criminal, ignoring the 4th amendment, and curtailing freedom? In America? Why? Prior restraint is a great evil that needs to be carefully weighed against its benefit and I just don't see the pre-boarding perp walk actually making us enough safer to be worth it.