Ever since marijuana was banned in 1937, biased research has been conducted and released in media awareness programs.
No example better represents this than a Partnership for a Drug-Free America television ad. In the television ad, they showed a normal human brainwave and then a flat brain wave from a 14-year-old on marijuana. Several researchers were disgusted by the ad and called up TV networks to complain about the commercial. As a result of this, the Partnership had to pull it from the air. The commercial was revealed to be completely bogus; it was, in fact, the exact opposite of the truth.
Marijuana actually increases alpha wave activity in the brain. Alpha waves are often associated with human creativity. In other cases, drug awareness groups and the government draw conclusions from insubstantial evidence and use them in their anti-marijuana campaigns. Most of the scary statistics and studies that the government uses in their anti-marijuana campaigns are based on the search of drugs.
Gabriel Anhas conducted an experiment in which he suffocated monkeys with marijuana for five minutes at a time. He repeated this over a period of six months and concluded that marijuana caused brain damage. Suffocation with any kind of smoke would cause brain damage.
If marijuana were legalized, it could free up the clogged court system, saving time and money. It would allow the police to focus on more serious drugs. If it were legalized, it could be taxed, and the government could generate billions. The government would also generate money by taxing the manufacturers and retailers of marijuana. Hemp-based products are already hot property in North America.