There should be more oversight at amusement parks to make sure that they are safe. It is a tragedy if someone is hurt or dies when they are trying to have fun at an amusement park. It is necessary for our government to do everything they can to protect Americans.
I have visited a few amusement parks within the United States and found that overall, they seem to be safe environments. With that said, getting on a metal machine with tracks and carts, posses a risk that the rider should be aware of and the park should do it's best to eliminate. Accidents happen, but I don't think that should give the government more rights to oversee private businesses.