earlier today, former louisiana senator attended that house oversight subcommittee hearing on louisiana flooding and the federal response. she served three terms in the senate and was in office when hurricane katrina made landfall in august, 2005. she chaired the senate energy and natural resources committee from 2014 to 2015. if you missed any of today s hearing on the louisiana flooding, we ll be showing it again tonight at 8:00 eastern on c-span2. other programming this weekend, book tv brings you 48 hours of nonfiction books and authors. and here are some of our programs for this coming weekend. saturday night at 9:00 eastern, new york city principal talks about starting an inner city middle school in her book the bridge to brilliance: how one principal in in a tough community is inspiring the world. she was featured on the humans of new york website which subsequently went viral. at 10:00, former u.s. attorney general alberto gonzalez talks about his life during