Some americans argue that should be used to keep domestic wages high and unemployment low.

The answer is "tariffs".

If we define tariff in simple words, then we can say that tariff is a tax and it adds to the cost of imported merchandise and is one of a few exchange arrangements that a nation can authorize. 
Tariffs are regularly made to ensure newborn child ventures and creating economies but at the same time are utilized by further developed economies with created enterprises.

Cancer  is the  uncontrolled growth and division of cells  that is often prevented by  cell-cycle checkpoints that monitor for dna damage or spindle fiber failure and stop the ..  cancer  is theuncontrolled growth and division of cells that is caused  by un-repaired..