MERIDA, Mexico (Reuters) - Hurricane Isidore plowed across Mexico's Yucatan peninsula on Monday, forcing thousands from their homes as it flooded streets, toppled trees and power lines and shut down offshore oil rigs. About 70,000 people in low-lying fishing villages on the peninsula were evacuated to shelters after torrential rains flooded homes and roads, and winds of more than 120 mph (195 kph) ripped off roofs and uprooted trees. Local radio stations reported four road accident deaths during the storm, and Mexico's state oil monopoly, Pemex, evacuated more than 8,000 workers from its drilling platforms in the Gulf of...