President Obama acknowledges the crowd gathered inside the Muniz Air National Guard Base hangar shortly after his arrival in San Juan, Puerto Rico, on Tuesday. His visit marked the first one by a sitting president since John F. Kennedy in 1961. The Puerto Rican flag provided half the backdrop for the podium.
Washington Nationals' pitcher Livan Hernandez has links to drug kingpin Angel Ayala-Vazquez and his associates, court documents in Puerto Rico show. (Associated Press)
In October 2009, 500 agents swarmed the public housing complex in Bayamon, Puerto Rico, where Ayala-Vazquez grew up and launched his drug empire. Ayala-Vazquez had been captured a month earlier after a seven-year investigation. (Associated Press)
Angel Ayala-Vazquez — known as "Angelo Millones" and "El Buster" — led Puerto Rico's most powerful drug trafficking organization. He was convicted in April of conspiracy to distribute cocaine, heroin, marijuana and pills such as Percocet and Xanax. (Department of Justice)
In this Jan. 1, 2011 publicity image released by Sandbox Entertainment, country singer Shania Twain, left, and her husband Frederic Thiebaud are shown on their wedding day in Rincon, Puerto Rico. (AP Photo/Sandbox Entertainment) NO SALES, FOR EDITORIAL USE ONLY
A U.S. Coast Guard vessel searches for survivors in an area believed to be the crash site of a Puerto Rico National Guard helicopter in Rio Grande, Puerto Rico, on Tuesday, Dec. 22, 2010. The chopper crashed Monday into the ocean after returning from a drug raid, with all six people aboard feared dead, officials said Tuesday. (AP Photo/El Nuevo Dia, Dennis M. Rivera Pichardo)
A view from a high-rise in San Juan, Puerto Rico, shows its Atlantic shoreline. Puerto Rico's relationship with the U.S. is confusing to many, including locals. (Associated Press)
Attorney General Eric H. Holder Jr. (left), accompanied by U.S. Attorney Rosa Emilia Rodriguez-Velez (right) of the District of Puerto Rico and FBI Executive Director Shawn Henry, answers questions during a news conference at the Justice Department in Washington on Wednesday, Oct. 6, 2010. Earlier in the day, FBI agents arrested scores of Puerto Rican police officers for allegedly aiding drug dealers. (AP Photo/Haraz N. Ghanbari)
The top of a palm tree lies beside the road after being blown off by winds from the approaching Hurricane Earl in San Juan, Puerto Rico, on Monday, Aug. 30, 2010. (AP Photo/Andres Leighton)
Puerto Rico's Carlos Arroyo, foreground, drives past Brazil's Anderson Varejao during the second period of the basketball game between Brazil and Puerto Rico, Friday, Aug. 13, 2010 during the World Basketball Festival at Rucker Park in New York. Puerto Rico defeated Brazil 77-55. (AP Photo/Mary Altaffer)
**FILE** Sen. Hillary Rodham Clinton shares a light moment with her husband, former President Bill Clinton, and their daughter, Chelsea, during a rally for her supporters in Ponce, Puerto Rico.