Final update, 11:55 p.m. ET, Tuesday  Hurricane and then Superstorm Sandy delivered devastation to 20 states, stretching from New England to Tennessee. Our blog monitored updates from before the storm made landfall to end of day Tuesday. Read back through the posts to see how conditions developed and changed as the storm progressed.

In the wake of the Aurora, Colo. "Batman Rises" theater shooting tragedy, social networks are flooded with posts from victims, friends, relatives, witnesses and other observers. Here is what they are saying — and seeing:

More NBC News coverage of the shooting:

• 12 shot dead at 'Dark Knight Rises' screening in Aurora, Colorado
• Officials name alleged gunman in Colorado theater shooting
• Colorado shooting survivor: 'He pointed the gun right at me'

As world leaders gather for the NATO summit in Chicago this weekend, thousands of protesters prepared to march in protest of the war in Afghanistan and the shaky economy. Below are reports from msnbc.com's Miranda Leitsinger (@mimileitsinger), protesters and Chicagoans, documenting what they see.