How Trump's team could've planned the Houthi strikes without Signal

"It's shocking. It's shocking negligence," a former senior defense official said. "We've got the best secure communication systems in the world — of any country — so why are we using a rickety, commercially available system?" A current senior U.S. official told Axios that while many of the participants in the Signal chat have encrypted government-issued phones on which they can discuss classified information, poor reception and other technical problems can make using a personal device easier. "You can drop from the line in the middle of a call," the official said (Read more at Axios).