A US 'nuke sniffer' plane has made a rare arrival in Britain - as Donald Trump assesses whether to carry out a strike on Iran's nuclear facilities. The United States had hit Iranian nuclear targets when it briefly joined Israel's war against Iran in June. Trump is still weighing up options against Iran, including targeted strikes on security forces and leaders to inspire protesters to overrun government buildings. Iranian officials have ratcheted up warnings that Tehran would respond forcefully to any US military action, while not ruling out diplomatic solutions. Seyed Abbas Araghchi, Iran's foreign minister, warned on X that Iran's forces were ready to retaliate.