dr. lauren dutra sees the same need on e-cigarettes. >> how is this different than caffeine?> the body thinks that nicotine is something naturally occurring and the addictive potential of this drug is higher than other substances that people use that are considered less harmful. >> several cities and states have already banned or restricted the use of e-cigarettes in public places. >> it's a semantic debate whether you call it harmful or not. >> e-cigarettes have been around since 2003. and the makers of e-cigarettes can see change coming. >> we're prepared for that. >> the blue e-cigs website is prepared. >> come on guys, rise from the ashes. >> i understand you brought us something. >> i did. so i -- i have two examples here and i want to see if you can tell just from looking which one is the strong cigarette and cigarette. can you tell? >> nope. they look exactly the same. >> i would assume the one on the left was the electronic one. >> this is the electronic cigarette and this one has been made out of the smoking cessation agent. this is trien t trying to mimice conventio