Jim Geraghty of National Review and Greg Corombos of Radio America applaud the Trump administration for considering a full closure of the U.S. embassy in Cuba in response to the bizarre sound wave assaults on U.S. diplomats in Havana and urge officials to follow through on the idea.  They also discuss the revelation that the London tube bomber was a teenage refugee just three years ago and why extreme vetting makes perfect sense.  And they get a kick out of College Park, Maryland, council members having to admit they actually didn't vote to allow illegal immigrants to vote in local elections because they didn't know their own charter.