COLUMBIA, S.C. (AP) — In South Carolina, any group that plans to overthrow the federal government — or any other government in the U.S. — must register its activities.It’s the law.Now some state legislators are looking to repeal it.State Sen. Larry Martin said Monday the 1951 McCarthy-era statute that’s meant to deter communists is one more thing making South Carolina look bad, since bloggers and talk radio picked up on it last month. A misconception spread that the statute, on the books for nearly six decades, had only recently become law.