Mexico intensifies search for missing persons after discovery of 8 bodies at Cancun resort.

Mexican officials have pledged to search for more missing people after eight bodies were found at a resort in Cancun, Mexico. The U.S. State Department has issued a travel advisory warning Americans to exercise "increased caution" when traveling to Quintana Roo, where Cancun is located, due to crime and kidnapping. More than 112,000 people are listed as missing in Mexico, and searches for clandestine grave sites have become common throughout the country. Feuding drug gangs have caused violence in Cancun and the resort-studded Caribbean coast south of it.