really needs to be prepared to answer these questions about iraq and answer these questions about his brother's presidency. so far he's had some problems doing so. >> thank you both so much. just ahead, trump and jeb bush may be in this back and forth over 9/11, but george w. bush has been ripping ted cruz. hear why and how senator cruz is responding. plus a new round of guidelines involving breast cancer screenings. hear what experts are saying. also more breaking news out of the middle east today. this new attack, a driver ramming into a crowded bus stop. one of the apparent targets, an israeli soldier. we'll take you there live. this is cnn. ♪ while you're watching this, i'm hacking your company. grabbing your data. stealing your customers' secrets.