Venezuelans searched for survivors beneath collapsed buildings on Thursday and rescue teams raced to northern areas rocked by a pair of powerful earthquakes that officials say killed at least 188 people and left more than 200 trapped. More were feared dead.The 7.2- and 7.5-magnitude earthquakes that struck on Wednesday evening were among the strongest in Venezuela in more than a century and were felt throughout the region.Some 1,500 people were injured, thousands were reported missing across...