The Secretary may transfer to and merge with “Emergencies in the Diplomatic and Consular Service” for rewards payments and for expenses of rewards programs unobligated balances of funds appropriated under “Diplomatic and Consular Programs” for this fiscal year and for each fiscal year on and after December 26, 2007, at no later than the end of the fifth fiscal year after the fiscal year for which any such funds were appropriated or otherwise made available.