The Pentagon is seen from the U.S. Air Force Memorial on March 24, 2025, in Arlington, Virginia. | Chip Somodevilla/Getty Images Under pressure from the Elon Musk-led Department of Government Efficiency, nearly all the staff of the Defense Digital Service — the Pentagon’s fast-track tech development arm — are resigning over the coming month, according to the director and three other current members of the office granted anonymity to discuss their job status freely, as well as internal emails. T...