no drugs should be illegal. it is ridiculous to criminalize any substance. ANY SUBSTANCE! b/c that's all it is, a substance. acts should be criminal, not matter.
this goes especially for naturally occurring substances as it is impossible to eradicate them... so it's just absurd and illogical. all types of poisonous plants fungi and insects exist and they've never been made illegal despite their obvious dangers... it is every person's individual responsibility as an adult and the responsibility of their caretakers as a child to keep themselves out of harms way, all criminalization of drugs does is create new paths for harm.
second hand smoke is bullshit, marijuana smoke is an upper respiratory tract irritant. that's the only reason that it can be considered harmful.
look at nicotine, one of the most addictive substances known to man, it's been legal since the founding fathers and usage is on a steady decline, big tobacco is a dying industry and everyone knows it.
you can't legislate these things, you can only educate. (and tax)
unfortunately this will never happen (at least not in my lifetime) so let's hope for widespread decriminalization and rescheduling of the controlled substances act.