An Obama administration program secretly dispatched young Latin Americans to Cuba using the cover of health and civic programs to bring about political change — a clandestine operation that put those foreigners in danger even after a U.S. contractor was hauled away to a Cuban jail.

As early as October 2009, a project overseen by the U.S. Agency for International Development sent Venezuelan, Costa Rican and Peruvian young people to Cuba in hopes of ginning up rebellion. The travelers worked undercover, often posing as tourists, and traveled around the island scouting for people they could turn into political activists.

In one case, the workers developed an HIV-prevention workshop that memos called "the perfect excuse" for the program's political goals — a gambit that could undermine U.S. efforts to improve health globally.

But their efforts were fraught with incompetence and risk, an Associated Press investigation found. Cuban authorities questioned who was bankrolling the travelers. The young workers nearly blew their mission to "identify potential social-change actors." One said he got a paltry, 30-minute seminar on how to evade Cuban intelligence, and there appeared to be no safety net for the inexperienced workers if they were caught.

"Although there is never total certainty, trust that the authorities will not try to harm you physically, only frighten you," read a memo obtained by the AP. "Remember that the Cuban government prefers to avoid negative media reports abroad, so a beaten foreigner is not convenient for them."

Nearly a dozen Latin Americans served in the program in Cuba, for pay as low as $5.41 an hour.

The AP found USAID and its contractor, Creative Associates International, continued the program even as U.S. officials privately told their government contractors to consider suspending travel to Cuba after the arrest of contractor Alan Gross, who remains imprisoned after smuggling in sensitive technology.

"We value your safety," one senior USAID official said in an email. "The guidance applies to all travelers to the island, not just American citizens," another official said.

The revelations of the USAID program come as the White House faces questions about the once secret "Cuban Twitter" project, ZunZuneo. That program, launched by USAID in 2009 and uncovered by the AP in April, established a primitive social media network under the noses of Cuban officials. USAID's inspector general is investigating that program, which ended in September, 2012.

Officials said USAID launched "discreet" programs like ZunZuneo to increase the flow of information in a country that heavily restricts it. But the AP's earlier investigation found ZunZuneo was political in nature and drew in subscribers unaware that the service was paid for by the U.S. government.

"USAID and the Obama administration are committed to supporting the Cuban people's desire to freely determine their own future," the agency said in response to written questions from the AP. "USAID works with independent youth groups in Cuba on community service projects, public health, the arts and other opportunities to engage publicly, consistent with democracy programs worldwide."

In a statement late Sunday, USAID said the HIV workshop had a dual purpose, saying it "enabled support for Cuban civil society while providing a secondary benefit of addressing the desire Cubans expressed for information and training about HIV prevention."

Creative Associates declined to comment, referring questions to USAID.

The ZunZuneo and youth programs were part of a larger, multimillion-dollar effort by USAID to effect change in politically volatile countries, government data show. But the programs reviewed by the AP didn't appear to achieve their goals and operated under an agency known more for its international aid work than stealthy operations. The CIA recently pledged to stop using vaccine programs to gather intelligence, such as one in Pakistan that targeted Osama bin Laden.