Obama wants this to happen. He will then use it as an excuse to further impose a police state and further increase to power of the Federal government over use. For our own safety of course. He studied Hitler well.
Look for a significant increase in gang activity, gun store robberies, assaults on police stations and officers in the field, look for hits on all infrastructure as well.
If you see this kind of pattern developing, someone has been reading Milton Browne and is putting it to use.