U.S. Secretary of Defense Lloyd Austin briefed reporters on the leaking of dozens of sensitive and highly classified documents Tuesday, saying they were "somewhere in the web." "Well, they were somewhere…in the web and where exactly and who had access at that point, we don't know. We simply don't know at this point," Austin said. Fox News learned earlier Tuesday through conversations with a variety of American defense and intelligence officials that as many as 53 documents were posted online, which were dated between Feb. 23 and March 1. The documents, officials told Fox News, may have come from outside...