As Warming Stokes Storms, Some Want Bigger Hurricane Scale: Category 6?

FILE- In this Nov. 11, 2013, file photo, survivors look as a military C-130 plane arrives at typhoon-ravaged Tacloban city, Leyte province central Philippines.

A handful of super powerful tropical storms in the last decade and the prospect of more to come has a couple of experts proposing a new category of whopper hurricanes: Category 6.