May 4, 2010 1:45 PM

Katie Couric interviews RPCV author and environmental expert Mike Tidwell about the massive oil spill in the Gulf and its potential consequences to coastal communities.

Entire interview available at: http://www.cbsnews.com/video/watch/?id=6460705n

 @katiecouric is a weekly online webshow on Tuesdays at CBSNews.com.  The webshow is hosted by Katie Couric, Anchor and Managing Editor of the CBS EVENING NEWS, and features candid one-on-one interviews with top newsmakers from the worlds of politics, business, entertainment and more.  Past interviews have included Glenn Beck, First Lady Michelle Obama, pop star Justin Bieber, and Sesame Street’s Elmo.