CNN CNN Newsroom April 7, 2013 08:24:00
Experience, not just the 50 or 100 where it's been an issue in the united states. we have countries from israel to spain looking at the medical aspects. as far as hard science, right now, pub med, i believe we're up to 23,000 studies, including double blind placebo experiments. do we know enough? no. do we know a lot? >> we'll be learning a lot more, i'm sure, as this continues to progress. paul, lenny, thank you. no arguing. we're not debating here. just talking. >> we're having a very mellow discussion and, lenny, it's always a pleasure getting to talk to you. >> see that. >> a true honor, t...