[ apple crunches ] fixodent. and forget it. we're following all the new developments in the mystery of flight 370. australia's prime minister says he is very confident, four signals picked up in the indian ocean are indeed coming from the missing jet's black boxes. a fifth possible ping was detected yesterday, but the search for it says it's unlikely that it came from the flight data recorders. remember, you can always follow us on twitter. go ahead, tweet me @wolfblitzer. you can certainly tweet the show @cnnsitroom. watch us live or you can always dvr the show so you won't miss a