On Sunday, White House Chief of Staff Rahm Emanuel, appearing on ABC’s This Week, underscored that President Obama had promised that CIA agents who acted in reliance on Bush-era Justice Department memoranda approving since-repudiated torture techniques would not face criminal investigation or prosecution. Then he went one step further, stating “those who devised the policy, he believes that they were—should not be prosecuted either.” A few hours later, White House Press Secretary Robert Gibbs reiterated Emanuel’s remarks as official policy. But during the course of the day on Tuesday the White House appeared suddenly to shift gears. President Obama, responding to a reporter’s question, declared that he was not prejudging a possible criminal investigation or prosecution of "those who formulated those legal decisions" behind the interrogation methods. What happened?