WASHINGTON - By the time Donald Trump proclaimed himself a wartime president - and the coronavirus the enemy - the United States was already on course to see more of its people die than in the wars of Korea, Vietnam, Afghanistan and Iraq combined. The United States will likely go down as the country that was supposedly best prepared to fight a pandemic but ended up catastrophically overmatched by the novel coronavirus, sustaining heavier casualties than any other nation. It did not have to happen this way. Though not perfectly prepared, the United States had more expertise, resources, plans and...