A tourist poses for a picture with a sign placed at the entrance of a restaurant with the images of Cuban and US Presidents Raul Castro and Barack Obama in Havana, Cuba on March 19, 2016. Political and economic reforms in Cuba will be a no-go area during talks between Cuban leader Raul Castro and US President Barack Obama, Cuban Foreign Minister Bruno Rodriguez said in Havana Thursday. On Sunday, Obama will become the first sitting US president to visit Cuba since 1928, capping his historic policy of ending a bitter standoff that has endured since Fidel Castro's overthrow of the US-backed government of Fulgencio Batista in 1959.  AFP PHOTO/ Yuri CORTEZ / AFP / YURI CORTEZ        (Photo credit should read YURI CORTEZ/AFP/Getty Images)