She and her husband, Fred, who survived the Holocaust in Holland as a child by being hidden and passed from house to house, wanted to be part of the last large reunion of survivors.

NPR: Holocaust Survivors, Veterans Gather At DC Museum

Fewer children are suffering violent deaths in Northern Ireland but the level of child abuse remains disturbing and often "hidden", according to a new report.

BBC: NI child abuse levels 'disturbing' says NSPCC report

Narrow spaces and hidden places would naturally matter enormously to a furtive child, and Scorsese chases after Hugo down tunnels and along passageways and up a stairway to his room the view up the stairway keeps telescoping in depth.

NEWYORKER: Fantastic Voyages

From child labor laws to the Clean Air Act to our most recent strictures against hidden fees and penalties by credit card companies, we have, from time to time, embraced common sense rules of the road that strengthen our country without unduly interfering with the pursuit of progress and the growth of our economy.

WSJ: Barack Obama: Toward a 21st-Century Regulatory System