Up and down the Mississippi River, rising waters are swallowing entire neighborhoods and reaching what experts call “major flood stage” in Iowa, Minnesota and Wisconsin. NBC News’ Maggie Vespa has the latest updates as the historic flooding worsens. | NBC Nightly News with Tom Llamas

The world's largest monstrance is traveling to Mississippi for the 10th Annual #FeteDieuDuTeche #EucharisticProcession, taking place on August 14-15 along the #Mississippi River from Baton Rouge to New Orleans. This historic river procession aligns with the national three-year #EucharisticRevival in the U.S. and follows the #NationalEucharisticCongress in Indianapolis last July. Standing 14 feet tall and featuring a 14-inch host visible from the riverbanks, the monstrance was inspired by one use