Well, that all depends on what somebody considers to be "liberty".
Is your liberty infringed if your name is run across those of potential terrorists before you get on a plane? Or if you are made to take your shoes off before getting on a plane? According to many, that is a huge infrongement on liberty. Myself, I am much more worried about "Life" (which is a hard and concrete thing) than I am about "Liberty", which can be nebulous and change depending on who is defining it.
After all, the 2nd Ammendment provides me with the "liberty" of owning a firearm so long that I am not a convicted felon. So is it a violation of my "liberty" if the Government says I can not own an M-60 Machine Gun? Where does the liberty of one person and and another being?
And what is a "bad choice"? As TurtleDude stated, one of the first major International Terrorist attacks was at the Marine Barracks in 1983. So what was the bad choice there, agreeing to participate in a UN Peacekeeping mission? And there are other attacks that are similar, going all the way back to the early 1900's.
You have to remember, Terrorism is generally one of 2 things. First as revenge, in retrebution for some previous slight. Secondly, it is to try and change minds and policies, to either support or oppose something else. But there are other times it is just simple hate. Most of the race and religion targeted attacks are because of hate against those groups, not because of anything they have ever actually done. So what "choices" had to deal with the Buford Furrow attack in 1999? Or the Charlston Church attack last year?