Counterintelligence specialists suspect that the former Secretary of State wasn’t the only member of the Obama administration emailing secrets around.

Hillary Clinton’s email problems are already causing headaches for her presidential campaign. But within American counterintelligence circles, there’s a mounting sense that the former Secretary of State may not be the only Obama administration official in trouble. This is a scandal that has the potential to spread to the White House, as well.

The Federal Bureau of Investigation can be expected to be tight-lipped, especially because this highly sensitive case is being handled by counterintelligence experts from Bureau headquarters a few blocks down Pennsylvania Avenue from the White House, not by the FBI’s Washington Field Office. That will ensure this investigation gets the needed “big picture” view, since even senior FBI agents at any given field office may only have a partial look at complex counterintelligence cases.