I can understand someone losing their job over illegal drug use, but I'm surprised so many feel that scrubbing him from everything he's done recently and potentially going to prison for seven years for possession (I'd bet he'll get a lighter sentence since he's admitted use and appears to be going along with their investigation for his source) is completely fine.
When I moved back from Japan to the US, I found that some of my friends had started doing cocaine while I was gone. Kinda freaked me out, especially when people were doing it at parties I went to. I don't think they're bad people, though. I hope that they don't get addicted, and I hope they stay safe. It seems obvious to me that drug traffickers and dealers are an issue, while those using drugs don't deserve serious sentences. I can't relate to the idea that drug use should cause one to be imprisoned and shunned by all of society, and I say this as a person who doesn't even smoke pot in a state where recreational use is legal.