secret in a cnn tv exclusive. stopped cold. cops pull a risky move to put an end to this wild high-speed car chase. welcome back to "early start" i'm christine romans. >> i'm alina cho. it's 29 minutes past the hour. let's get started. new problems this morning for carnival cruise line for the second time this week, third time this month, a ship is malfunctioning at sea. right now the cruise liner "legend" limping slowly home to tampa, with propulsion problems forced to bypass a scheduled stop in the caymans. just two days ago generator problems idled the carnival "dream" at a port in st. maarten and passengers are being flown directly home. all of this follows last month's debacle on the carnival "triumph." remember that one, when an engine room fire left 4200 people stranded in filth and human waste in the gulf of mexico. an eight-day nightmare. christina puig following the