Technological innovations lay at the heart of many of last year's biggest stories -- from citizen-recorded videos that fanned the flames of the Arab Spring to the social-media organized Occupy movement. So what new technologies – and unexpected uses of them – will change social habits and relationships this year? Here are four 2012 technology trends that are sure to play a role:
Occupy Day of Action led to several major protests, chiefly in New York City. But what did the Occupy Day of Action accomplish?
DNA evidence: New York Governor David Paterson has proposed roughly doubling New York's DNA database to include samples from even low-level offenders. But could that be an invasion of privacy?
Mayor Bloomberg moves to expand high-tech surveillance to midtown Manhattan. But civil liberties groups are concerned, and some security experts question its value.
An Idaho school scrambles for funding, saying it helps more teen moms graduate.