South Carolina’s pine forests “have spent centuries hiding a secret as old as America itself,” reports CBS News: In August 1780, British and American soldiers clashed there, leading to a terrible defeat for the Continental army [fighting for the 13 colonies rebelling against England]. Battlefield archaeologists Jim Legg and Steve Smith have been studying the site for decades, but recently, they made a shocking discovery: The sandy soil was home to several sets of remains buried in shallow graves. Metal buttons suggested the men had been Continental soldiers, but there was no other identificati