I can't understand this, so would appreciate expert money and/or economy input...

"duties of 10% on all imports from China and 25% on imports from Mexico and Canada -- America's largest trading partners -- except for a 10% rate on Canadian oil" (per AP)

First, I don't understand why the China tariff is lower and so much lower...

Second, why our two nearest neighbors and probably where we trade with most...

IMO, any retaliatory actions would make sense but that's just mo...