Are flight crews over worked, causing mental break downs?

Within the last few weeks time we have seen air crews so stressed out that the meltdowns have become more frequent. Especially while in the air ! Yet - the FAA and the airlines plus the lobbyists want more flights, closer Next Gen type assigned air routes where a 5 mile separation is now only 3 - no matter what type of aircraft! Who is running these air crews into the ground ? Who is responsible in seeing flight become so close to 9-1-1 - most of the time ? (gopetition.com) Plus d'info...