havana jill biden wife u.s. vice president joe biden arrive cuba thursday late sign rapprochement cold war foes saw president barack obama family visit march biden greet havana international airport josefina vidal lead negotiations unite state head u.s. affairs cuban foreign ministry biden plan watch match u.s. cuban soccer team friday havana go social media one cuba new wifi hot spot visit teachers college among activities accord u.s. diplomatic source havana ambassador-at-large global women issue cathy russell assistant secretary state educational cultural affairs evan ryan accompany biden also travel central camaguey province head dominican republic sunday white house statement say biden educator schedule meet government officials engage diverse range cubans topics relate culture education health obamas visit highlight warm trend bilateral relations announce countries december 2014 18 months secret talk half-century estrangement u.s. lawmakers strongly oppose move argue communist-ruled cuba must far improve human right deal normally unite state agreements reach areas law enforcement environment resumption postal service commercial flight talk thorny issue fugitives reparations continue decades-long u.s. trade embargo cuba remain place lift congress although obama use executive authority chip away side say want strengthen economic relationship unite state complain cubans slow take advantage open carve obama example trade private sector cuba say u.s. sanction make trade investment impossible u.s. trade representative michael froman also havana schedule meet friday foreign minister bruno rodriguez foreign trade investment minister rodrigo malmierca jill biden wife u.s. vice president arrive cuba