Joseph Lieberman actually said...

I share Senator Collins' concern both about the decision to try Abdulmutallab in a regular Federal court as opposed to a military commission...

We are in a world war with the Islamist extremist terrorists who attacked us on September 11, 2001.

There ought to be a category where there is some basis for concern about contact with terrorism.

the obligation we have to everybody else on the plane is to check anybody we have reason to suspect of being a terrorist