Marijuana should be legalized. Like what Jillio said, the war on drugs was lost long time ago. We're already spending billions on it and still not a single positive result yet. We're spending millions unnecessary-incarcerating people charged with small grams of weed.
The biggest reason why marijuana's still illegal and was illegal in the first place is because of pharmaceutical companies. We all know weed is great for medicinal purpose and it's probably the only natural drug with very minimal side effects for people with cancers or pain. of course... that is bad business for pharmaceutical bastards. they want you to keep buying their medications even though it's not even close to being as effective as weed. they advertised and lobbied very heavily at Congress to criminalize it and did a very good job instilling a stigma to people.
Saying weed is bad for your health and kills your brain cells is ludicrous. So do alcohol, aspirin pills, TV, McDonald, etc. There are 1000000000000 things we can get addicted to and die from it. It's about personal responsibility. Funny thing is... smoking kills about 440,000/yr, alcohol kills 85,000/yr, and marijuana kills 0 so far.
we spent over $19 billion in 2003 on useless drug war! end it now! free up prisons! Drug Laws are INDEED socially created. You get harsher penalty for a small bag of weed than a brick-worth of cocaine. Why? because cocaine is the rich xxxxx xxxx drug. Hell President Bush snorted some, too!
oh btw - I don't do drugs nor drink alcohol
but logically, economically, politically... it does not make sense to criminalize marijuana.