Detailed text transcripts for TV channel - CNN - 20171024:10:54:00
It comes into mexico, where it is pressed into pill form or combined with heroin. the other way it comes in is american consumers buying it direct, oftentimes from vendors out of china. >> then it gets mailed in? >> u.s. mail, which is the most common, a very small quantity of fentanyl is very hard to detect in the masses of letters that come into the u.s. everyday. >> reporter: how effective is a wall at preventing drugs from getting into the united states? >> in terms of hard narcotics, i don't know that it's over hard narcotics. as of right now, the vast majority of hard narcotics comes in ...