An old Minnesota controversy has a breath of new life thanks to a semi-retired chemist in Wisconsin. Barry Hanson has gathered a team of experts to study whether the Kensington Runestone might actually have been carved by wandering Vikings in 1362. Most experts agree the stone is a hoax, carved in 1898 by a Swedish farmer and stone mason. But Hanson says he began to doubt those claims when he first visited the museum ten years ago: