There are 35 million anglers in the US, reports CNBC. You wouldn't expect those living in the central part of the country to be very active right now, but Brainerd, MN is the home of the world's biggest ice-fishing contest, says the news organization, with some 20,000 holes presently being drilled in 18 inches of ice. The purpose? Making places to fish, for the throngs who enter the $150,000 contest, sponsored by the Junior Chamber of Commerce and now in its 17th year. Looks like a lot of fun, but when it comes to fishing through a hole, spotting the quarry with a submerged waterproof video camera, I get cold feet. CNBC says local stores are selling a lot of cameras on a string right now.