Flights to two african nations, while u. S. Groups begin pulling workers out. This morning, an exclusive live interview with the son of an american battling the virus. And the second one. Sharknado was a surprise hit. Are those sharks . Tonight, the sequel arrives with more wild lines and special cameos. There is this is a twister with teeth. Theyre sure to set the internet on fire today, wednesday, july 30th, 2014. Studio 1a in rockefeller plaza. 3 c3 Plaza Rockefeller we start in the middle east, our top story once again. The shelling of a school being used to shelter people displaced by the ongoing violence in gaza. This morning, the United Nations is blaming israel and condemning at tack. Lets get right to nbcs chief Foreign Correspondent Richard Engel in gaza city for us again. Good morning to you. Reporter good morning, savannah. Witnesses tell us there were no militants or weapons in this school when it was hit around 4 00 a. M. Women and children were sleeping in one of the cla