By Roberta Rampton and Ayesha Rascoe WASHINGTON (Reuters) – President Barack Obama urged Americans to remain vigilant against the potential threat of homegrown Islamic State militants on Friday due to the difficulty of tracking “lone wolf” attackers like those who went on a shooting spree in California. Obama appeared in the White House press briefing room for a year-end news conference shortly before traveling to San Bernardino, California, where the Dec. 2 shootings took place, on his way to spending the holidays in Hawaii. “All of us can do our part by staying vigilant, by saying something if we see something that is suspicious, by refusing to be terrorized and by staying united as one American family,” Obama said.
Source:: Yahoo News
