Before a flight takes off, I stand and survey the passengers to see if there are some who fit the terrorist profile. If the government won't do it, then we men need to do it personally.
And, of course, I am happy to take the seat - esp if it is an exit seat - more legroom.
I agree completely. I was on a flight from Chicago to Houston a couple of weeks ago and there was a pair of men I watched carefully. After the second one went to the bathroom I even considered asking the flight attendant if I could move my seat to be directly behind them (I am 6' 4")
Un-PC it may be, but I will maintain situational awareness on all flights I am on for the rest of my life.