Key senators and the families of the 67 people who died when an airliner and Army helicopter collided near Washington, D.C., are convinced advanced aircraft locator systems that experts have been recommending for decades would have prevented the crash.

Republican Sen. Ted Cruz wants restrictions on military flights approved before government funding runs out at the end of next month to prevent another midair collision like the one near Washington, D.C., that killed 67 people in January.