How this turned into a discussion about the TSA, I have no idea. It was gate personnel and PHX PD. TSA didn't appear to have any part of it.
Anyway, considering the comments and POVs, I figure, what the hell, might as well throw a little gas on the easily offended fires on the intertubes. I'm in a snarky mood.
As a 120-150 segment per year flier based in PHX (and avoiding Terminal 4 like the plague!), and seeing most hub & secondary airports in the country during the year, I can attest to two things.
1) The TSA, like most large, bureaucratic organizations, is staffed by predominately good folks, honestly trying to do a job that puts them below used car salespeople and politicians on any most-admired list. The small minority that are unmitigated pinheads (and I think I've met most of them by now) are thankfully being slowly weeded out or relegated to behind-the-scenes baggage inspection.
I have learned that just following the simple (and yes, sometimes asinine) rules and maintaining a good cheer speed me through quickly and with no problems, and may actually ease the journey of the folks behind me, if I can put the TSA agent in a better mood. Customer service works in both directions. Bottom line here, it's the world we've got, so we better learn where the cheese got moved to, else we go hungry and handcuffed into the night.
2) The overwhelming majority of the traveling public don't have the sense to come out of the rain, much less navigate a major airport. Actually, they cause more headaches than the TSA does. I try to help when I can (and so does the TSA most times, along with everyone that works there), but when 90%-plus of the people jammed in the terminal are clueless--and bearing an insufferable sense of entitlement--well, tempers will flare.
As far as the luckless lass that expired, time will tell, and the truth will be known. Up to the point of her death, it's all on her. To the precise, factual cause and nature of said death, we'll find out over the next few weeks, I'm sure. Dying in PHX PD custody is generally cause for a major investigative effort by the local media, as a number of previous incidents have been less than proper or the decedent's fault.
Just remember, one may have a right to travel freely in the US, but the mode of travel is not.