Legislation to trace ammunition is pending in several states, and many gun owners are concerned that it is just another attempt by anti-gun groups to violate citizens' Second Amendment rights. An organization known as Ammunition Accountability is pushing to make coding technology mandatory across the nation. Its website claims it is a group of "gun crime victims, industry representatives, law enforcement, public officials, public policy experts, and more" who are "saving lives one bullet at a time." If states pass the legislation, manufacturers will be required to laser etch a serial number into the back of each bullet and the...