tonight on 360, the founder of facebook s stunning apology to parents of online abuse victims as he and other social media ceos are grilled by senators for their platforms impact on children. facebook whistle-blower joins us. also tonight, even as tough details of a bipartisan deal on border security emerge, the lawmakers who are demanding it back further away. we are keeping them honest. plus after months and months of brutal numbers, new polling shows a bump for president biden. the question is what does it mean? answers from james carville. good evening. john berman here sitting in for anderson. we re going have that and more in the hour ahead. we begin with breaking news. new u.s. air strikes targeting iranian-backed houthi drones in yemen. let s get straight to oren liebermann at the pentagon. oren, what s the latest here? john, these strikes occurring in the last couple of hours in yemen. the u.s. airstrikes targeted a number of houthi drones in yemen. this is