Why is it your data safe with some of the biggest american retailers . On the heels of the target breach, name and marcus also says it is a Neiman Marcus also says it is a victim. And it is an app that many had given up on, but now foursquare has features to tell you what is good nearby and send you on the spot. We have more on the turnaround. And it is more than just robots. We explore Artificial Intelligence in a special weeklong series, starting with a look at how ibm is betting watson can do so much more than when jeopardy. Then win at jeopardy. Im here with sam grobart, Senior Writer for bloomberg is this week. He will be with us all week long. Great to have you on the show. Top story of the day. The fallout from the target breach has gotten even bigger. As many as one hundred 10 million customers may have been affected. Credit card numbers, debit card numbers, personal information like phone numbers, email addresses stolen. Target is getting pretty long on the details. The ceo ca