Dow sinks 330 points as US-China tensions grow, airlines plummet after Buffett sale

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· *US stocks fell Monday amid investor concern over a further escalation of the long-running conflict between the US and China.*
· *Airline stocks plunged after famed investor Warren Buffett said over the weekend that he sold all his shares in the industry's "big four" carriers.*
· *Crude oil slipped after rebounding...