Grace Hood

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Colorado responded to the mass shootings in Aurora, Colo., and Newtown, Conn., by passing new gun control measures last month. That's not sitting well with several gun-related businesses in the Centennial State, where four companies have announced plans to relocate all or some of their operations.

The U.S. military and law enforcement agencies have seen increased public scrutiny on the domestic use of the robotically piloted planes known as drones. Working on the sidelines of this debate, the U.S. Geological Survey has been trying to find a second life for retired military drones in the areas of environmental and wildlife management. Instead of watching the battlefield, these drones are watching birds.

An obscure tax code provision crafted for drug dealers is giving state-licensed medical marijuana dispensaries a headache.

In Colorado, federal income tax rates for dispensaries can soar as high as 70 percent because of a tax code section that does not allow businesses to claim certain deductions.

The section is known as 280E, and it was originally written for illegal drug traffickers. But today it's a thorn in the side of licensed dispensary owners like Erica Freeman.

Welcome to the 21st century classroom: a world where students watch lectures at home — and do homework at school. It's called classroom flipping, and it's slowly catching on in schools around the country.

When Jessica Miller, a high school sophomore in rural Bennett, Colo., sits down to do her chemistry homework, she pulls out her notebook. Then she turns on an iPad to watch a video podcast. Whenever the instructor changes the slide, Miller pauses the video and writes down everything on the screen.

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