Systems Cascading News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Security correspondent, fran. if other countries health care our computer systems, can you really picture the united states using military force in retaliation? >> you know, mary, there's an exercise called cyber shock wave. cnn covered it, wolf blitzer covered it. i was part of this exercise. it was this very sort of fact pattern where a foreign country and unknown foreign country attacks our power zbrid and you begin to see during the course of the exercise, this -- gain, if you will, lights cascading out along the northeast corridor. and -- immediately it becomes clear how pervasive this is...

columbia. that's why we are reporting from outside. there are major developments involving cell phones, information that you need to know from the world health organization about the possible danger of cell phone use and cancer. stand by. elizabeth cohen has a full report. we're also watching bin laden and the black money trail. new information coming in on money and bin laden. stand by for that as well. we'll have the latest on anthony weiner, the congressman from new york. our own dana bash is following up on this story. i'm wolf blitzer. you're in "the situation room." but we be...