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This week on "TechKnow": Zaki Jackson suffered debilitating seizures from when he was a baby until 16 months ago. His mother credits use of a cannabis oil called Charlotte's Web, made at a medical marijuana dispensary, with stopping the seizures and changing their lives—but the drug is only available to families in Colorado, and has yet to be tested in FDA-approved clinical trials.
TechKnow is a weekly series that explores how the latest scientific discoveries are changing our lives. Our geeky contributors use their diverse backgrounds in science and technology to expose the controversies and celebrate innovative breakthroughs in the U.S. and around the world.
Sen. John McCain, R-Ariz., said that the Crimea region of Ukraine might already be lost to Russian control