Alex Wagner talks with Rachel Maddow about her reporting on residents of a stretch of Louisiana called "Cancer Alley" who are fighting to address concerns about pollution from a petrochemical plant after a lawsuit filed by the Biden Justice Department and the EPA was dropped by Donald Trump.   For more context and news coverage of the most important stories of our day click here: msnbc.com » Subscribe to MSNBC: youtube.com/msnbc » Subscribe to MSNBC on TikTok tiktok.com/@msnbc » Subscribe to MSNBC on Instagram instagram.com/msnbc Download our new MSNBC app for the latest breaking news and daily headlines at a glance: msnbc.com/information/download-msnbc-app-n1241692 Follow MSNBC Show Blogs MaddowBlog: msnbc.com/maddowblog MSNBC delivers breaking news, in-depth analysis of political headlines, commentary and informed perspectives. Find video clips and segments from The Rachel Maddow Show, Inside with Jen Psa...