use your $1,500 allowance to lease the 2014 cadillac ats for around $359 a month with nothing due at signing. >> announcer: this is cnn breaking news. let's gets back into the breaking news. chinese state news agency reports a ship has detected a pulse signal in the flight 370 search zone in the southern indian ocean. we are bringing back peter goelz and then a leading authority on the world's ocean. michael kay is the british retired officer and richard quest is with us. arnold carr is with us. a worldwide sonar expert. peter goelz, the malaysians had