first, a super moon. now, a solar eclipse. the amazing photos and what the universe has in store next. stand by. good evening, everyone. today we saw it, american police officers with night sticks and shields forcefully shut down a public demonstration. it happened in chicago. several people were hurt, a few dozen arrested, and the prediction of possible violence around the nato summit came true. protest marches early in the day were loud but uneventful, but then it happened. something or somebody made all hell break loose. watch. chicago police say the crowd was about 2,500 strong when the tension escalated. it happened not far from where president obama and more than 50 world leaders were juggling issues facing afghanistan and nato. the city s top police officer blames a small group of trouble-makers. there was a group of what we commonly refer to as the black bloc folks who kind of rallied together, they put their masks on, and we had intelligence from the crowd th