John Thune actually said...

One of the greatest threats that we face in this country, when it comes to air travel, is public complacency.

It's hard for me to take commitments to security seriously as long as forcing TSA into collective bargaining is a priority.

I'm much more comfortable with the type of approach that is incentive-based, uses the carrot, rather than the stick.

I think Secretary LaHood said it best: both work, and the issue ultimately is a policy one left to the Congress.