I'm having the same reaction. I hate the TSA so much I avoid flying if at all possible, and indeed haven't been on a plane in three years. But making a scene like this accomplishes nothing. Or, possibly less than nothing -- if the onlookers thought she was a kook.

If, instead of doing this at the security checkpoint, she wanted to stand at the entrance to the airport speaking and handing out leaflets, she would be exercising her First Amendment rights, and I would hope they would accommodate her. (If they didn't, I wouldn't be surprised, but I would be angry.)

But what she chose to do was just pointless.