Former Sierra Leone President Ernest Koroma seeks medical care in Nigeria amid treason charges Sierra Leone's former President, Ernest Koroma, has landed in Nigeria following permission granted by a court in his home country to seek medical care for three months. The ex-president faced arrest and charges of treason, misprision of treason, and harboring suspects in Sierra Leone. Mr. Koroma's arrival in Abuja on Friday was on a Nigerian Air Force plane, where he was received by Nigeria’s National Security Adviser Nuhu Ribadu and the President of the ECOWAS Commission Omar...