By DAVID RUNK An Ohio man charged in what federal prosecutors say was a Christian militia's plot to wage war against the government said Saturday that he wasn't aware of any such specific plans and regrets not severing ties with the group.Kristopher Sickles, 27, of Sandusky, told The Associated Press in a telephone interview from jail in Sanilac County, Mich., about 75 miles north of Detroit, that he has "never hurt anyone or taken steps to do so.""As far as any specific plan to overthrow the government, I never heard such things," Sickles said.