It's one thing if a politician in a small country says a little bit of torturing is good to do. There is a qualitative difference... when it's a candidate to run a superpower.
The ICRC did not see Nazi Germany for what it was. Instead, the organization maintained the illusion that the Third Reich was a 'regular partner,' a state that occasionally violates laws, not unlike any army during World War II, occasionally using illegal means and methods of warfare.
The sad fact is that horrendous human conflict is nothing new.
It is very clear from the text of the Geneva Conventions that families have the right to know about the whereabouts of their missing and that belligerents have a duty to inform families if they have indication and if they are detaining people.