bill: president obama signing an order expected to pave the way for the iran deal. and it calls for lifting of several long-binding restrictions on iran's economy. martha: tragedy on the football field after a texas high school player collapsed on the field and died. he's the 6th death of an american high school football player since the season started. dr. marc siegel is looking into this. good morning. what happened to this young man? >> this is a great tragedy. we don't know the exact details. he had a seizure, he had a