Following former President Donald Trump's victory in the U.S. presidential election on Nov. 5, his administration is expected to make a long list of major policy changes, including regarding trade, climate and defense. Many analysts, including ours, have written extensively about what these changes are likely to be and how they will affect the globe, but one overlooked foreign policy from the outgoing administration of President Joe Biden has been the extensive use of "intelligence diplomacy" -- and whether Trump will continue it. While prior U.S. presidents sporadically have used this strategy -- which in practical terms relies on strategically using intelligence information to achieve foreign policy goals -- Biden has employed it far more enthusiastically than any other. Though the outgoing administration has trumpeted this strategy as a model for U.S. foreign policy, it carries costs and benefits just like any other, and it will not go uncontested by...