Iran vows to ditch more nuclear curbs in war of words with U.S.

The Japan Times 

TEHRAN - Iran said Tuesday it will further free itself from the 2015 nuclear deal in defiance of new American sanctions as U.S. President Donald Trump warned the Islamic republic of "overwhelming" retaliation for any attacks. Tensions between Iran and the U.S. have spiraled since last year when Trump withdrew the United States from the deal under which Tehran was to curb its nuclear program in exchange for relief from economic sanctions. The two arch-rivals have been locked in an escalating war of words since Iran shot down a U.S. surveillance drone in what it said was its own airspace, a claim the US vehemently denies. On Monday, Washington stepped up pressure by blacklisting Iran's supreme leader Ayatollah Ali Khamenei and top military chiefs, saying it would also sanction Foreign Minister Mohammad Javad Zarif later in the week. Tehran was defiant on Tuesday, saying the new US sanctions against Iran showed Washington was "lying" about an offer of talks.