PARISA HAFEZI IRAN is technically capable of making a nuclear bomb but has not decided whether to build one, a senior adviser to Iranian Supreme Leader Ayatollah Ali Khamenei told Qatar's al Jazeera TV on Sunday. Kamal Kharrazi spoke a day after U.S. President Joe Biden ended his four-day trip to Israel and Saudi Arabia, vowing to stop Iran from "acquiring a nuclear weapon." Kharrazi's comments were a rare suggestion that Iran might have an interest in nuclear weapons, which it has long denied seeking. "In a few days we were able to enrich uranium up to 60% and we…