I saw that too, it was actually my very first sight of an e-cig -- and I told my husband last night that I may have an idea why Letterman decided that it was time to cash in his chips -- you know whoopi goldberg is also a vaper, and I think Dennis Leary is or was at some point; on his show they both talked about quitting smoking, but nary a word about e-cigs -- because I think CBS said no more good press for vaping -- one of their sponsors is for that Nicorette crap! I can SOOOOOO see Letterman saying well {moderated} that, I'm outta here!

Andria