Early morning flight on American. The security checkpoint for my terminal is closed. There was no sign downstairs so I unnecessarily walked to the first terminal then had to backtrack. The air conditioner is not on. The second terminal had shut down the TSA precheck lane and first class screening. On my way back to my terminal, the moving sidewalk was shut down. By this point I'm drenched in sweat and need a drink. No restaurants or coffee shops are open, so I stopped by a vending machine to get a Gatorade. There are four rows of Gatorade in the vending machine. But despite putting in money and selecting each of the four in turn, the machine says they are sold out. This entire airport seems to be run by the least competent members of a government agency, because that is the only other place such ineptitude survives long enough to become entrenched.