Nightly News | January 14, 2012
>>> war of words with iran is becoming even more heated. the iranians making new allegations against the u.s. we get the latest now from our tehran bureau chief.
>> reporter: good evening, lester. tensions remain high in this long-running feud between iran and the west. this morning state tv reported that iran has strong evidence that this week's attack on one of the nuclear scientists was planned and coordinated by the cia. it's the fifth attack of its kind in two years. angry mourners marched through the streets yesterday, chanting death to america and death to israel. the supreme leader said that the c cia and israeli intelligence was to blame. the bitter exchange of rhetoric could turn into an exchange of blows on the strait of hormuz where 20% of the world's oil papad passes through. iran has threatened to shut it down and washington says it will not let that happen. earlier this month, the u.s. navy and coast guard ships have two close encounters in the persian gulf with high-speed iranian navy boats that showed provocative behavior. no shots were fired and the iranian boats backed off. the danger is that one miscalculation in this narrow choke point could set off a chain of catastrophic events. lester?