"A well regulated militia being necessary to the security of a free state, the right of the people to keep and bear arms shall not be infringed."

This is part of the second amendment exactly what is a well regulated militia ??  Based on the current US gun laws it's hard to argue that any form of regulation exists. But at least the first amendment guarantee's an individual's right to petition the government for a redress of grievances. Does this mean if the majority of Americans petition for tighter gun regulation maybe it will induce change.... Up to the will of the people ?