Speaking of M-1 Carbines, my dad has a story. He was in Italy in WWII, participating in shooing the Germans out of a small town. He was in the combat engineers, so he had been issued the M-1 carbine.
He runs around the corner of a building, and literally bumps helmets with a German soldier. He swings up his carbine, goes to hit the safety, hits the clip release by mistake, and drops all his bullets in the street.
Fortunately Fritz had not waited around to see what was up and was making tracks for Heidelberg too fast to hear the pitter-patter of little fat cartridges.
But dad threw away the carbine, picked up a Garand from a dead GI, and carried it the rest of the war. He doesn't have anything nice to say about the carbine.
"But, daddy," the children cried, "Why did you have your safety on?"
"Didn't want to shoot myself in the foot," harrumphed Dad.
After you put the clip in, and it clicks into place, you then rotate your thumb out of the way, and let go of the op rod. If it doesn't go forward, you can help it with the heel of your hand, but your thumb should be already out of the way.
Anyway, everyone should go sign the petition anyway. The M14s in storage, are ours. We, the taxpayers, paid for that stuff. Why should we pay yet again to get them destroyed. Just sell it to the citizen-soldiers. ;)