Sinn Fein to Lead Northern Ireland Government in Historic Power-Sharing Deal
• Deal ends 2-year political deadlock in Northern Ireland, restores power-sharing government • Sinn Fein to hold top leadership role for first time, representing Catholic voters seeking united Ireland • Democratic Unionist Party ends boycott of Northern Ireland's assembly, enabling deal • Britain, Ireland, U.S. welcome the breakthrough, see it as positive step • Deal signals major shift as Sinn Fein takes first minister role held by DUP in past