An inspired Obama wants to target gun violence, but how?

But President Barack Obama's response to a gunman's massacre of 20 children and six adults at a Connecticut grade school has revealed a more complex view of the president: emotional, frustrated - and perhaps rethinking his largely hands-off approach to gun control.

"We can't tolerate this anymore," Obama said late Sunday at the vigil for the victims in Newtown, Connecticut, as he recalled earlier mass slayings and the shooting of former U.S. congresswoman Gabrielle Giffords in 2011. "These tragedies must end. And to end them we must change."

Obama notably did not use the word "gun," but he did cast his argument against violence in terms of another politically potent image: protecting America's children.

"Can we honestly say we're doing enough to keep our children, all of them, safe from harm?" Obama asked. "...If we're honest with ourselves, the answer's no. We're not doing enough and we will have to change."

Obama promised that "in the coming weeks, I'll use whatever power this office holds to engage my fellow citizens - from law enforcement to mental health professionals to parents and educators - in an effort aimed at preventing more tragedies like this."

It was the strongest signal yet that Friday's shootings and Obama's standing -- he was just returned to office and will not be up for election again -- may have inspired him to embrace gun control as part of his

... contd.