Waiter Denis Sosa, 33, (R), uses his mobile phone to connect to the internet under an outdoor sign with images of Cuban late rebel revolutionary Camilo Cienfuegos (C), revolutionary hero Ernesto "Che" Guevara (R) and co-founder of the first Communist Party of Cuba, Julio Antonio Mella, with messages reading "Long live free Cuba", Havana, September 18, 2015. The United States on Friday issued regulations easing restrictions on American companies seeking to do business in Cuba and opening up travel in the latest action to weaken the U.S. trade embargo amid warming relations with the Communist country. The rules, which take effect on Monday, Sept. 21, target travel, telecommunications, Internet-based services, business operations and banking, and allow U.S. companies to establish a presence in Cuba. They also eliminate limits on the amount of money people can send back to the Caribbean nation. REUTERS/Alexandre Meneghini