Former Sri Lankan Health Minister and presidential candidate of the common opposition Maithripala Sirisena, left, and former Sri Lankan President Chandrika Kumaratunge attend an event in Colombo, Sri Lanka, Monday, Dec. 1, 2014. Sirisena on Monday signed an agreement with opposition parties, trade unions and professional groups to scrap the country's powerful presidential system and carry out other democratic reforms if he beats incumbent Mahinda Rajapaksa and wins January's presidential election. (AP Photo/Eranga Jayawardena)
