Trade war escalates, autism cause research, IVF mix up & more

China is suggesting today’s tariff hike on US imports was its last, but that doesn't mean it’s done fighting. Iran has set out red lines for its talks with the US tomorrow. New federal research is going to look into the cause of autism. House members broke away from party lines at a CNN town hall last night. Plus, a woman has mistakenly given birth to another couple’s baby.

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