More high school seniors this year used marijuana than smoked cigarettes in the past 30 days, according to government data released Tuesday.

A high school principal in Nevada is under fire for suspending 12 students who posted pro-marijuana signs on campus.

Cannabis is a safer drug than aspirin and can be used long-term without serious side effects, says a book by a leading Oxford scientist.The Science of Marijuana, by Dr Leslie Iversen of Oxford University's department of pharmacology, found many "myths" surrounding marijuana use, such as extreme addictiveness, or links with mental illness or infertility are not supported by science.

Cops find guard bears around cannabis crop in Canada.

Under the plan, which would take effect in January, license recipients would be heavily taxed and regulated. They would have to pay the city $211,000 in annual permit fees, carry $2 million in liability insurance and be prepared to devote up to 8 percent of gross sales to taxes.

The measure also would require bidders to meet certain labor, environmental and product safety standards.

However, there would be no size restrictions on the facilities.