The White House is "working closely with departments and agencies to address unexplained health incidents and ensure the safety and security of Americans serving around the world," deputy press secretary Karine Jean-Pierre told reporters on Thursday. CNN reported earlier Thursday that federal agencies are investigating at least two possible incidents on U.S. soil, including one near the White House last November, that appear similar to mysterious, invisible attacks that have led to debilitating symptoms for dozens of American personnel abroad. "Given that we are still evaluating reported incidents, and that we need to protect the privacy of individuals reporting incidents, we cannot provide or confirm specific details," Jean-Pierre also said.