Did the CIA spy on Congress? And what did President Obama know and when did he know it? Those are the questions swirling around the capitol this week. On Tuesday, Sen. Dianne Feinstein took to the Senate floor to accuse the CIA of spying on Senate investigators charged with looking into the agency’s use of controversial interrogation tactics and overseas detention policies.  On Wednesday, White House spokesman Jay Carney admitted the CIA gave the White House a “heads up” that it would file a criminal complaint against Senate investigators with the Justice Department, The Hill reports. Congressman Darrell Issa says the CIA’s action may be “treason.” The Washington Post reports on the “long, slow fuse” between Sen. Feinstein and the CIA that finally reached its end this week. And, in Mother Jones, liberal columnist David Corn warns that the blowup “threatens a constitutional crisis.” 

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