President Joe Biden has been given a sinister warning over Iran’s nuclear capabilities. Ex-UN weapons inspector David Albright said the Iran could be led into thinking that building nuclear warheads is their “best way out.” It comes after three US soldiers were killed by a ‘kamikaze’ drone. Iran has been blamed for enabling groups attacking the US. A spokesperson from the Pentagon said the latest attack carried the “footprints” of Iran-backed Kataib Hezbollah. Albright said: “You certainly don’t want to attack Iran now by any means, but you do need to retaliate. “Certainly, any retaliation sho…