While presidential candidates furiously work to charm Iowa's Republican electorate, a visit with Texas businessman Mike George has become a vital stop on the road to the 2012 nomination. More than 20 years ago, George created Lean Six Sigma, a business methodology that the U.S. military and major businesses have employed to cut waste. ...."It is the largest grassroots organization in Iowa -- and it's not me, it's the message," George said. In the past two months, several Republican candidates have met with George and enthusiastically adopted his group's pledge. There are indications that Gov. Rick Perry may also support...