But the move has raised the ire of some representatives in Congress. They are blocking the payment because they say the money was supposed to go towards counterterror programs. "We are concerned that the administration’s proposal to use military assistance to pay for the F-16 upgrades will divert funds from more effective counterterrorism tools like helicopters, TOW missiles, and night-vision goggles," said Howard Berman and Nita Lowey, heads of two key committees in the House of Representatives, in a July statement.