Northrop Grumman Corp.

Congress probes Islamic State counter-propaganda operations

Congressional investigators are demanding documents and contacting witnesses in a wide-ranging probe of the Defense Department's troubled anti-propaganda efforts against the Islamic State.

The investigation by the House Oversight and Government Affairs Committee follows reporting by The Associated Press in January that uncovered critical problems with the program known as WebOps and revealed conflicts of interest in a new contract potentially worth $500 million to expand psychological operations against terrorist groups.

The AP found the WebOps programis so beset with incompetence and flawed data that multiple people with direct knowledge of it say it's having little...