You were asked the question twice[1][2] and ignored it both times, so I was trying to pin down an answer. I'm trying to find where our disagreement lies.
1) We agree that the TSA agents' actions should make me angry.
2) We agree that the TSA agents themselves are culpable for their actions.
3) Therefor, it makes sense for me to be angry at the TSA agents.
4) I think our disagreement lies here, where I think I am allowed to retaliate (within the bounds of the law, obviously) against those who upset me, while you think I'm not.
You were couching your argument in terms of "they're just doing their jobs; be angry at the policy makers, not at those who carry out the policy," which made me think the disagreement was in (2) above. But your reply here makes me think the disagreement is in (4).
I understand the viewpoint that one should always turn the other cheek to one's oppressors. I don't subscribe to it myself. If they're going to harass and anger me and waste my time, I really don't have any problems returning the favor.
[1] https://news.ycombinator.com/item?id=10801547
[2] https://news.ycombinator.com/item?id=10801549