US Secretary of Defense Lloyd Austin “expressed his outrage” at Israel’s deadly attack on volunteers in the Gaza Strip in a conversation with his Israeli counterpart, an Austin spokesman said. During the phone call with Yoav Gallant, Austin “stressed the need to immediately take concrete steps to protect aid workers and Palestinian civilians in Gaza after repeated coordination failures with foreign aid groups,” US Department of Defense spokesman Pat Ryder said late Wednesday. Austin urged Gallant “to conduct a swift and transparent investigation” into the deadly incident, in which seven employ…