The cruise ship industry is booming, and now, the appeal is more than just the destination. CBS News travel editor Peter Greenberg has more on special interest cruises. 

(Photo credit: Getty Images)

<p>The cruise ship industry is booming, and now, the appeal is more than just the destination. CBS News travel editor Peter Greenberg has more on special interest cruises. </p>
<p>(Photo credit: Getty Images)</p>

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