Many Cubans still have heart during their nation's austere times. A teenager walking along Havana's famous waterfront drive, the Malecon -- not far from where the U.S. battleship Maine exploded in 1898 -- displays a flash of style that would not be out of place 90 miles across the sea in South Florida. Likewise, Cuba's aging leadership struggles to keep alive the country's prized social programs, while trying to rebuild its collapsed economy.