A subway poster advertising a commemorative book on Ruth Bader Ginsburg was defaced with anti-Semitic and other slurs. The NYPD's hate crimes unit is investigating slur-ridden "DIE" graffiti scrawled on a Brooklyn subway station poster of Ruth Bader Ginsburg after a rider flagged it on Twitter Tuesday. "What is going to be done about this?" the rider captioned in her tweet, tagging the mayor's office, the MTA and NYPD among other accounts. She said it was spotted at the Nassau Avenue G train stop. "DIE" in all capital letters is scrawled in black marker across Ginsburg's forehead on the poster;...