Biden vows to ‘impose costs on Iran’ after prisoner swap

US citizens Siamak Namazi (R-back), Emad Sharqi (L) and Morad Tahbaz (C) disembark from a Qatari jet upon their arrival at the Doha International Airport in Doha on September 18, 2023. – Five US detainees, three previously identified as Siamak Namazi, Morad Tahbaz and Emad Sharqi and two who wish to remain anonymous, released by Iran landed in Doha in a prisoner swap on September 18 after $6 billion in frozen funds were transferred to Iranian accounts in Qatar. (Photo by Karim JAAFAR / AFP)