April 11, 2012 6:46 am Combating Cell Phone Theft A new national plan will to make life a lot tougher for people who steal smart phones and other digital devices. A proposed new central database will help make stolen cellphones useless. NBC’s Brian Mooar reports. US & World Videos 2:42 Tech companies now using AI to help boost housing market 1:34 Artificial intelligence used to avoid blackouts 1:25 Bay Area high school seniors honored with Dave Goldberg Scholarship 0:26 Kaiser Permanente data breach may have affected millions 3:29 Watch: Why the pay gap for women in tech hasn't budged