WASHINGTON (AP) — Congress is poised to launch an investigation into why Army leaders have resisted requests to provide battlefield units with a specific computer program that helps troops locate and clear roadside bombs.

The software program, the Palantir System, is being used by some units in Afghanistan, but Army officials have denied multiple requests for it from others, including the 1st Brigade, 82nd Airborne Division, which in a May memo cited an “urgent need” for it in the volatile Ghazni province.