US President Joe Biden’s administration on Friday waived some sanctions related to Iran’s atomic program as talks aimed at salvaging the languishing 2015 nuclear deal enter a critical phase. As US negotiators head to Vienna for what could be a make-or-break session, US Secretary of State Antony Blinken signed several sanctions waivers related to Iran’s civilian nuclear activities. The move reverses the previous administration’s decision to rescind them. The waivers are intended to entice Iran back to the 2015 deal that then-US president Donald Trump withdrew from in 2018 as US sanctio...