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Audie Cornish

If you've been watching the Democratic National Convention in Philadelphia on TV, you've probably seen it happen a few times already: Every few minutes, a fresh wave of brightly colored signs — bearing campaign slogans like "Stronger Together" or "Love Trumps Hate" — spreads across the convention floor like wildfire.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit NPR.

Across the U.S., more than 20 million people abuse drugs or alcohol or both. Only about 1 in 10 is getting treatment.

People seeking treatment often have to wait weeks or months for help. The delays can jeopardize the chances they'll be able to recover from their addiction.

If you took a map of Chicago and put down a tack for each person shot last year, you'd need nearly 3,000 tacks.

Of those, 101 would be clustered in the neighborhood of East Garfield Park. That's where 15-year-old Jim Courtney-Clarks lives.

"To be honest, I really don't like it," Courtney-Clarks says. "Every time you look up somebody else is getting killed, and I never know if it's me or somebody I am really close to."

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