© Getty Images This past Monday was a historic day, a literal shot in the arm in the human war against a devastating virus. It is appropriate to call it “V-Day” in America, a comparison made by four-star Gen. Gus Perna, the chief operating officer of Operation Warp Speed in charge of vaccine deployment, to D-Day, when we landed on the beaches of Normandy during World War II to begin the liberation of Europe. With Friday's federal approval of a second vaccine from Moderna and the start of its distribution today, and with still others being considered, it's even more of a remarkable scie...