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Legislators in 13 states are considering proposals to allow a version of Charlotte's Web to be produced or sold legally, but there have been no studies to prove the effectiveness and safety of the drug

Some parents of children with severe epilepsy believe a liquid marijuana extract known as Charlotte's Web controls their seizures. Legislators in 13 states are considering proposals to allow a version of Charlotte's Web to be produced or sold legally, but there have been no studies to prove the effectiveness and safety of the drug. Barry Petersen reports.

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The full episode of The CBS Evening News from March 6, 2014

The Senate came within five votes of passing a major change to the military's command structure. An amendment by Sen. Kirsten Gillibrand, D-N.Y., would have stripped commanders of authority over sexual assault cases and put everything in the hands of seasoned military trial lawyers; and, the Russian navy sank one of its own decommissioned warships across the mouth of an inlet, trapping Ukrainian ships at their dock further up the channel.

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Commercials for medical marijuana, and related businesses could be coming to cable providers in the Chicago area very soon. One ad that aims to get people cleared for marijuana prescriptions has been getting mixed reviews from industry experts

Commercials for medical marijuana, and related businesses could be coming to cable providers in the Chicago area very soon. One ad that aims to get people cleared for marijuana prescriptions has been getting mixed reviews from industry experts. WBBM-TV's Dorothy Tucker reports.

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