Three truck drivers are facing federal drug charges after authorities seized millions of dollars of suspected drugs in Southeast Michigan. In Detroit, customs agents found $12.5 million worth of suspected cocaine hidden in oat flour shipments in a Canadian-plated truck. In St. Clair County, authorities stopped two other drivers moving about $1 million of suspected methamphetamine near Port Huron. All three were charged with possession with intent to distribute and remain in federal custody as investigations continue.