Several hours from now, the Rolling Stones will take the stage – in Havana, Cuba. It will be the biggest rock show the country’s seen since communists took over in 1959. More than a half-million people are expected to attend and it’ll be projected on 10 jumbo screens. All a big deal in a country that once banned Rock ‘n Roll. The concert marks the end of a historic week for U.S.- Cuba relations. Tim Padgett covers Latin America for WLRN, a public radio station in Miami. He just got back from Cuba.