Welcome to TechCrunch daily news, a round up of the top tech news of the day. Presented by The Salvation Army. This Christmas, you’re invited to join our fight for the hungry, the homeless, and the hopeless. To give, ask your smart speaker to make a donation to The Salvation Army, or visit SalvationArmyUSA.org to donate. --Tesla has a crazy new vehicle --Twitter takes an important step to strengthen security --and Y Combinator drops its plans for China.
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