by Alexandre Grosbois and Moises Avila Agence France Presse HAVANA, Cuba (AFP) — Cuba observed a weekend of national mourning for victims of its worst crash in nearly three decades that killed 110 passengers and crew. An investigation has been launched into Friday’s crash of the nearly 40-year-old Boeing 737-200 leased to the national carrier Cubana de Aviacion by a Mexican company. Three women pulled alive from the mangled wreckage and in hospital in critical […]