Seanie's got a gun

Dateline : New Orleans

It seems our lil' sailor has dissed the boat for some serious firepower. Sean Penn was seen this week touting a shotgun while on his "rescue mission". Two looming questions come to mind. Since the Military now controls the city and the regular citizens aren't pernmitted to carry weapons, how did Penn get a gun? Lastly and most importantly, who in the hell does he intend to shoot?