in keeping with its obligations to the world - we will place the diplomatic relationship under review," Chavez told dpa. Posada Carriles, an anti-Castro Cuban exile, was detained in the U.S. last week and charged with illegally entering the country. U.S. immigration officials have indicated that it's unlikely he would be sent to any country that is a friend of Cuba. Chavez and Cuban leader Fidel Castro are close political allies. Posada Carriles has admitted to planning terror attacks in Havana that killed an Italian tourist in 1997. He was a CIA operative during the 1960s and 1970s. The fugitive was serving an eight-year term in Panama for plotting to kill Castro during a summit, but was pardoned last year by an outgoing president. Posada Carriles has requested political asylum from Washington as a former CIA operative. U.S. authorities have not moved against him in the terrorism accusations, charging him only with illegally entering the United States. --SP 2216 Local Time 1916 GMT