President Obama on Tuesday in the Oval Office is briefed on the Boston Marathon bombings. From left, according to the White House, are: Homeland Security Secretary Janet Napolitano, Deputy National Security Adviser Tony Blinken, National Security Adviser to the Vice President Jake Sullivan, Attorney General Eric Holder, Assistant to the President for Homeland Security and Counterterrorism Lisa Monaco, Chief of Staff Denis McDonough and FBI Director Robert Mueller.
(Official White House Photo by Pete Souza)
