A day after President Trump’s bungled attempt to calm the national coronavirus jitters, the Dow Jones took a 10 percent nose dive, losing 2,352 points while America grinds to a halt with closures and cancellations announced too fast to keep up with them.

Pointless: Iran’s President Hassan Rouhani described the latest round of economic sanctions as pointless and called the White House “mentally retarded.”  “Today, the Americans have become desperate and confused,” he added. “This has made them take unusual measures and talk nonsense.”  The new …