OKLAHOMA CITY (AP) — A memorial and museum built to remember the worst act of domestic terrorism on American soil is in the midst of a $7 million upgrade so it can better portray how different the world was when Timothy McVeigh blew up the Oklahoma City federal building 19 years ago Saturday. Too many patrons, especially younger ones, do not realize that the days of constant cellphone contact and instant news updates are more recent developments, and that the hours and days spent pulling mangled bodies from the crumbled Alfred P.