While I do agree with all sentiments regarding TSA hiring, Goverment policy, or lack thereof regarding TSA and Airport security, I respectfully must disagree with you on flaming them for this incident.
When looking at this incident, as a single incident, yes it may seem like nonsense and unnecessary. But when taking into account the sensitivity that engulfs todays very real security threats in our airports, airplanes, and planet in general, there is a time and a place for political statements - especially derogatory ones. And an airport is NOT the place for this kind of crap. Seven years ago? Nobody would have cared. But because any kind of nut with a mission, and there have been many non-terrorist types that have posed extreme potential risks on flights, and in airports- believe me, many which you don't hear about, that anyone with a thinking brain would just suck it up like a man, follow the rules - right or wrong as they may be - and catch your damned plane. It is no different then telling the police officer that just pulled you over for speeding that his captian is a prick! Now where would that get you? (tongue-in-cheek, of course

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Go outside and protest, write your congressman, send a damn chain mail, but don't do it in an airport.
To me this guy gut exactly what he wanted - attention, by a provoked action. And this is one of the kinds of "watch" type things that the TSA drills into their peoples heads to watch for. Put yourself in their shoes for just one second. What if this guy, who you don't know when he is coming through your checkpoint proudly displays his bag with that statement and you let him go. Then by the gate he gets in an uproar and starts chanting "TSA SUCKS, TSA SUCKS", or even gets further into the plane and starts running up and down the isles inciting a riot because he hates this guy. Well, now you have passengers, many of them who are already stressed or uneasy about flying - for whatever reasons - possible delays, or diversions of flight, etc...And you just got fired for letting this bastard throught your line!
Read between the lines guys, there is so much more than the rhetoric and frenzy regarding anti-TSA/Governement. For everyones safety, sanity, and peaceful travel - just suck it up and do your part when IN the airport.
Everyone has a right to their opinions, and i respect all of yours, and the goofball in question here. But be smart about how to get your message across, or you lose yourself in the cause.
Have a great day everyone
Neil