( Reuters)-" Cuba Libre" was painted in giant block letters on the street directly in front of the Cuban embassy in Washington on Friday following unprecedented protests on the Communist-led island last weekend. The phrase-which literally means' free Cuba'-has long been associated with both Cuban independence from Spain and later its 1959 revolution.... It was not immediately clear who was behind the giant lettering, whose format echoed the yellow' Black Lives Matter' mural that was painted on