12 PM ET: Biden says 'stand up,' migrants arrive in cities, blood pressure deaths & more

President Joe Biden used his speech to the UN General Assembly to tell countries to stand up against Russia's aggression in Ukraine. Protests have broken out in Libya, while scientists say climate change made the floods there 50 times more likely. A government shutdown could impact the Federal Reserve's inflation fight. El Paso, Texas is preparing for a "third wave" of migrant arrivals, while San Diego deals with same. Plus, the WHO says treating high blood pressure could save 76 million lives.

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