WASHINGTON — President Barack Obama is questioning whether "stand your ground" laws contribute to peace and security and "order we want to see."

Florida protesters have urged repeal of the state's "stand your ground" measure since George Zimmerman was found not guilty in teenager Trayvon Martin's death.

Obama questioned Friday whether Martin would have been found justified in shooting Zimmerman if he'd been of age and armed.

Obama suggests other measures that communities should consider in the wake of the verdict, including training for law enforcement on race issues, as with legislation he helped pass as a state senator in Illinois.

He downplays the usefulness of a politically led national conversation on race. But Obama encourages families, churches and workplaces to engage in such discussions.