Authorities announced Friday night that they would block access to La Guaira, the epicenter of the destruction, as chaos and traffic were hampering search efforts. LA GUAIRA, Venezuela (AP) — The situation has grown more desperate by the hour in Venezuela as people dig through the rubble of collapsed homes and apartment buildings three days after the devastating one-two punch of 7.2 and 7.5-magnitude earthquakes , knowing time is running out to find survivors. Authorities announced Friday night