The government of Bolivia announced a preliminary study for a program of uranium exploration in the southern department of Potosí this month, and broached the possibility of uranium exports to Venezuela. The program, projected at costing $500,000, will be financed by the Potosí departmental government and carried out by the National Mineral Geological and Technical Service (Sergeotecmin). The Bolivian Institute of Nuclear Technology, a moribund agency since its uranium processing plant in Potosí was closed 25 years ago, may be revived if the exploration program is successful.

Four lion cubs freed under Bolivia's circus-animal ban arrived at San Francisco International Airport this week, heading to a new life in a northern California refuge built with the help of TV personality Bob Barker and the Performing Animal Welfare Society. The deal was arranged by Animal Defenders International. The Bolivian law, to take effect in July, prohibits circuses from having any animals, the world's most comprehensive ban. (ADI press release, May 26 via Business Wire; AP, May 27; KTVU, San Francisco, May 22)

The Bolivian government says it will negotiate with an indigenous group that apparently lynched four police officers on May 23. Government rights ombudsman Rolando Villena said he was travelling to the southern department of Potosí to try to convince the group to hand over the officers' bodies. An assembly of "Ayllus Guerreros" (generally translated as "Warrior Clans," although ayllu is perhaps better rendered as "community") has declared the local municipality of Uncía a "zona roja," and are barring authorities from entering to search for the bodies.

New Yorker Lori Berenson was paroled from a Peruvian prison May 25 after spending 15 years behind bars, Judge Jessica León Yarango rejecting prosecutors' warnings that she remains a "dangerous" terrorist. In her ruling, León said Berenson had "completed re-education, rehabilitation and re-socialization," and demonstrated "positive behavior." Berenson, 40, and her year-old prison-born son, are to be freed in the coming days, reports say.

A former Colombian police major, Juan Carlos Meneses, has come forward to allege that Santiago Uribe, younger brother of President Alvaro Uribe, led a paramilitary group in the 1990s in the northern town of Yarumal, Antioquia department, that killed petty thieves, guerrilla sympathizers and suspected "subversives." In an interview with the Washington Post, Meneses said the group's hit men trained at La Carolina, a ranch owned by the Uribe family, in the early 1990s. "This is what we have been hoping for—that something like this could come out, and we could show what these paramilitary groups were," said María Eugenia López. She said five of her relatives were killed by paramilitaries in Yarumal in 1990.

Indigenous leaders in Ecuador announced the temporary lifting of their protest campaign against the pending national water law on May 13. The announcement came as Ecuadoran lawmakers failed to reach a deal on putting off debate on the contested water bill, leaving the legislation with an uncertain future. Unrest over the past week had left 20 injured and 30 detained. Delfín Tenesaca, president of the indigenous organization ECUARUNARI, said, "The mobilizations are suspended for now, to give a turn to the popular assemblies" to decide the next move.

At least six people were killed—three of Serbian nationality and three Bolivians—and one was kidnapped in an assault perpetrated by suspected drug traffickers in Bolivia's eastern department of Santa Cruz on May 15. The victims were stopped at a false police checkpoint and were tied up, tortured and executed, authorities said. The gunmen kidnapped Bolivian national William Rosales Suárez, who police identified as "the ringleader of a drug-trafficking gang in Santa Cruz," with a price of $1 million on his head. (LAHT, May 15)

Colombia's presidential election on May 30 is developing into an unexpectedly tight race between Juan Manuel Santos—incumbent hardliner Alvaro Uribe's former defense minister who pledges to continue the current aggressive military campaign against leftist guerillas—and Antanas Mockus, reformist, anti-corruption candidate of the Green Party (Partido Verde). In February, President Uribe was constitutionally barred from running for a third term, leaving Santos as his heir-apparent and presumed shoe-in. But polls are showing Mockus' potential as an upset victor.