Most travelers know about the TSA's liquid rule, but now, at least one airport has banned the use of motorized, ridable suitcases. CBS News travel editor Peter Greenberg explains why.

(Photo by Bob Henry/UCG/Universal Images Group via Getty Images)

<p>Most travelers know about the TSA's liquid rule, but now, at least one airport has banned the use of motorized, ridable suitcases. CBS News travel editor Peter Greenberg explains why.</p>
<p>(Photo by Bob Henry/UCG/Universal Images Group via Getty Images)</p>

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