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The U.S. believes North Korea is making nuclear warheads that are small enough to sit on top of a missile. This is according to a new report today from The Washington Post. As the news broke, President Trump ratcheted up his rhetoric.

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In Prince George's County, Md., every first responder carries naloxone, the drug that can reverse an opioid overdose.

"We carry it in our first-in bags," says Bryan Spies, the county's battalion chief in charge of emergency services. "So whenever we arrive at a patient's side, it's in the bag, along with things like glucose, aspirin and oxygen."

Updated at 5:10 p.m. ET

Venezuela's highest court has ordered the arrest of a mayor allied with the opposition to President Nicolas Maduro. The order handed down Tuesday by the Supreme Court formally fired Ramon Muchacho, mayor of the capital's wealthiest district, Chacao, and sentenced him to 15 months in prison.

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