Finally, with the Iranians showing no signs of releasing the hostages, Carter decided to take a risk. On April 11, 1980 he approved a high-risk rescue operation, called "Desert One," that had been in the works for months. Though the odds were against its success, the president was devastated when he had to abort the mission due to three malfunctioning helicopters. When another helicopter crashed into a C-130 transport plane while taking off, eight servicemen were killed and three more were injured. The next morning, gleeful Iranians broadcast footage of the smoking remains of the rescue attempt, a symbol of America's failure to save the hostages.