An attorney with the Internal Revenue Service’s professional standards office in Washington has been charged with conspiring to distribute 500 grams or more of methamphetamine, U.S. prosecutors said. Jack Vitayanon, 41, an IRS attorney since 2012 allegedly participated in a meth ring with others in Arizona and on Long Island between about September 2014 and January, according to a criminal complaint unsealed in Brooklyn federal court Wednesday. Public records show Vitayanon living in the U Street corridor. In the criminal complaint, prosecutors noted that during one alleged transaction, Vitayanon directed a buyer to make a cash deposit of $1,650 to...