Adman Hal Riney came up with the 1984 Reagan slogan "It's ___ again in America". Which word?

What does "p.m." mean when used in medicine to mean after death? Which adjective means artificial or synthetic, from the German for "replacement"? Which adjective is used for the U.S. railroad completed in 1869? Admiral Rickover's study concluded that which ship's 1898 explosion was likely caused by a coal bunker fire? Horatio Nelson became a hero by defeating Napoleon's fleet in the 1798 battle of which river? Admiral Nelson won which decisive 1805 naval battle but was killed during it? Adolf "Adi" Dassler founded which shoe company in 1949? Whom did Adolf Hitler marry in April 1945, a day before they both died?