an even greater and clearer national security challenge to more of our allies than the situation in libya yeah was. given the fact there was a nuclear plant that the north koreans that the airs had to take out and collusion on resign and other types things collusion with iran but it's careful language meant to send a signal. i think at this point. tough people like assad is not susceptible to signals. they need to see that we have the power and will to move in decisive way. >> gregg: one wonders what it would do to assad. steven yates, thanks very much. >> heather: back to this, a dangerous heat wave gripping much of the country from the midwest to the east coast. city officials warning people to take this weather seriously.