producers on the planet. now threatening to entirely stop its exports. the ripple effects from such a move could hit us here in the united states and hard. iran's oil minister said today that if the west tightens economic punishes any further iran will stop exporting droil many nations. some saying a cut off would amount to economic suicide for iran. world powers say those penalties are meant to curb iran's nuclear program which the rogue nation claims is for peaceful purposes only. peter barnes reporting for us tonight from d.c. how big a move could this make on our economy, peter? >> well, it could threaten the economic growth again, shep. at the beginning of this year, like now, iran was making similar threats about oil supplies. that sent the price of crude soaring to nearly $110 a barrel stayed above 11 bucks for 11 straight weeks. the price of gas as you recall hit nearly $4 a gallon in