The Pentagon's weapons-technology boss has commissioned a new study that aims to head off "strategic surprise" in the coming decade by directing an influential advisory panel to examine U.S. military potential blind spots, weighing information about prospective adversaries' technological capabilities and operational concepts that could lead to "regrets in 2028." On April 20, Michael Griffin, under secretary of defense for research and engineering, signed a one-page memo tasking the Defense Science Board to conduct a "2018 Summer Study on Strategic...