Baseball is back! Last night was the first game of the 2013 Major League Baseball season, and many teams are playing their first games today.Unfortunately, for kids allergic to peanuts, going to the ballpark can be a dangerous adventure. So some teams are going to great lengths to remedy that situation by creating "peanut-free zones" at certain games. The Milwaukee Brewers, for instance, have lined up six dates that will have two peanut-controlled sections at Miller Park. Each of the games follows a day off or a road game, giving maintenance crews time to power-wash and disinfect the sections. Ushers are trained to be on the lookout for fans with peanuts coming near the sections - and will relocate guests who want to eat peanuts at the games.