Hundreds of thousands of Cubans desperate to leave the island’s flailing economy and reunite with family in the U.S. but unable to get visas in their own country have been forced to fly to Central America and make tortuous journeys north, or navigate the Florida Straits in rickety vessels.Many Cubans have been traveling fewer than 100 miles by sea to Florida, often arriving in precariously constructed boats packed with migrants.Most recently, the arrivals of hundred migrants by boat in the Florida Keys this week prompted the temporary shutdown of Dry Tortugas National Park.The full resumption of visa work at the embassy comes after a series of migration talks and visits by U.S. officials to Havana in recent months.Under President Joe Biden, the U.S. has eased some restrictions on things like remittances and family travel from Miami to Cuba, but has fallen short of many Cubans’ hopes that a Biden presidency would return the island to what’s remembered from the Obama era."