Grant Gerlock
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Iowa's largest school district is offering a big incentive to address teacher shortages. Experienced teachers who put off retirement for one more year can make an extra $50,000 or more.
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For comic book fans, there's Comic-Con. For would-be knights there's the Renaissance Festival. Now, we hear about cowboy wannabes acting out their six-shooter fantasies.
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After years of being burned by Roundup, weeds like palmer amaranth, marestail and giant ragweed have evolved resistance to the herbicide. To fight them, scientists are now looking to a concept that seems straight out of sci-fi.