As the US and Iran head into their next round of nuclear talks in Geneva, a new AP-NORC poll finds that many US adults continue to view Iran's nuclear programme as a threat - but they also don't have high trust in President Donald Trump's judgment on the use of military force abroad. About half of US adults are "extremely" or "very" concerned that Iran's nuclear programme poses a direct threat to the United States, according to the new poll from The Associated Press-NORC Centre for Public Affairs Research. About 3 in 10 are "moderately" concerned and only about 2 in 10 are "not very" concerned or "not concerned at all." The survey was conducted Feb 19-23, as military tensions built in the Middle East between the United States and Iran. The US is seeking a deal to limit Iran's nuclear programme and ensure it does not develop nuclear weapons, while Iran says it is not pursuing weapons and has so far resisted demands that it halt uranium enrichment on its soil or hand over its stockpi