Following months of wrangling, the Colorado Department of Agriculture has secured a permit from federal drug enforcement officials to import industrial鈥�

For years in Colorado, the thought has been that pot will sell itself. Now that it鈥檚 legal, marijuana businesses are realizing they鈥檒l need to carve out鈥�

Early efforts to test legal marijuana are finding that it's got lots of buzzworthy THC. But it can also have fungus, chemical residue and bacteria. What that means for health and safety isn't clear.