WASHINGTON, DC - DECEMBER 6: U.S. President Barack Obama addresses the country from the Oval Office on December 6, 2015 in Washington, DC. President Obama is addressing the terrorism threat to the United States and the recent attack in San Bernardino, California. (Photo by Saul Loeb-Pool/Getty Images)

WASHINGTON, DC - DECEMBER 6: U.S. President Barack Obama addresses the country from the Oval Office on December 6, 2015 in Washington, DC. President Obama is addressing the terrorism threat to the United States and the recent attack in San Bernardino, California. (Photo by Saul Loeb-Pool/Getty Images)