Venezuelan President Hugo Chavez has warned the United States that diplomatic relations with Washington could be at risk if the U.S. fails to extradite accused terrorist Luis Posada Carriles to Venezuela, dpa reported. "We would have to evaluate whether it is worth it to have an embassy in the United States, whether it's worth it that the United States have an embassy in Venezuela. For what?" Chavez said on his Sunday radio programme, "Alo Presidente". "I ask myself before the entire country: Why put on a pretence? Things are or they are not," dpa quoted him as saying. Venezuela wants to try Posada Carriles, who at one stage acquired Venezuelan citizenship, for ordering a 1976 attack against a Cuban airliner from Venezuelan territory. Seventy-three people died in the attack. Posada Carriles escaped from a Venezuelan jail in 1985, where he was being held in connection with a probe into the bombing. Last week, Venezuela said Washington's credibility in the fight against international terrorism is at stake in the extradition. --More 2215 Local Time 1915 GMT