Activists hang a banner with the names of three federally-imprisoned Puerto Rican nationalists, of the militant group Machateros, a day before the arrival of President Barack Obama to Puerto Rico at ... more 
Activists hang a banner with the names of three federally-imprisoned Puerto Rican nationalists, of the militant group Machateros, a day before the arrival of President Barack Obama to Puerto Rico at El Morro National Park in San Juan, Puerto Rico, Monday June 13, 2011. The activists are demanding that the U.S. government release the men, convicted decades ago of serious crimes. Obama's June 14 trip marks the first visit to the U.S. Caribbean territory by a sitting U.S. President since John F. Kennedy's 1961 visit. (AP Photo/Ricardo Arduengo) less 
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Associated Press | Photo By Ricardo Arduengo
Mon, Jun 13, 2011 9:57 PM EDT