Comment on Helicopter downed as 12 killed in Rio violence

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A home is engulfed in flames during the Eaton fire in the Altadena area of Los Angeles County. Josh Edelson/AFPThe Los Angeles firestorms show how quickly wildfires can turn into urban fires. Flying embers, not direct flames, often ignite homes first. Homeowners can mitigate fire risk by maintaining a clear perimeter around their properties.

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