In his Jan. 13 testimony before the Senate Foreign Relations Committee, Secretary of State nominee Rex Tillerson made an extraordinary comment concerning China's activities in the South China Sea. The U.S., he said, must "send a clear signal that, first, the island-building stops," adding that Beijing's "access to the those islands is not going to be allowed."

President Trump's Press Secretary, Sean Spicer, repeated the threat on Jan. 24.

Sometimes it is hard to sift the real from the magical in the Trump administration, and bombast appears to be the default strategy of the day. But people should be clear about what would happen if the U.S. actually tries to blockade China from supplying its forces constructing airfields and radar facilities on the Spratley and Paracel islands.