O'Malley: U.S. Must Do "Better Job" at Defending Against Islamic State

U.S. Democratic presidential candidates weighed in on the rise of Islamic State militants during a contentious debate on Saturday in Des Moines, Iowa, just one day after attacks claimed by Islamic State in Paris killed nearly 130. The lethal attacks in Paris have placed a new emphasis on issues of national security, border control, and counterterrorism, while perhaps bolstering candidates who talk toughest about taking on Islamic State militants both at home and abroad.