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But as Vietnamese manufacturing has boomed, so has the nation’s trade surplus with the U.S., rising fourfold since 2015 to $123.5 billion last year.

The result is that even the EPA’s alarming estimates of cancer risk vastly underestimate — by as much as fourfold — the chances of formaldehyde causing cancer.

“Today we've got somewhere less than 2%, as well as a fourfold decrease in the living tissue color cover of our coral reefs in the Keys. That's due almost entirely to things like climate change.”

Every age group has suffered increases, with the most alarming spike -- nearly fourfold -- in those aged 25 to 34.

The purpose of prison is fourfold – to punish, protect the public, deter crime and give the opportunity for rehabilitation.