May 23, 2012 6:22 pm Park District Ends Bacteria Swim Bans The Chicago Park District will no longer ban swimmers from Lake Michigan due to high bacteria levels. Natalie Martinez reports. Local 2:18 Latest forecast from the NBC 5 Storm Team 2:13 Mayor proposes to relocate migrants from downtown shelter to Chicago's South Side 0:47 Surveillance video shows armed thieves storm West Town bar 2:11 Dozens arrested at pro-Palestinian demonstration on Art Institute of Chicago campus 0:58 Mystik Dan wins 150th Kentucky Derby in photo finish