Today We Are All Meaning

(idiomatic, US) An expression indicating that the speaker empathizes with members of an identifiable group that was the subject of a disaster, and projects that others empathize as well.

Example: August 12, 2008:, Robert Barnes, "McCain to Georgian President: "Today, We Are All Georgians"", Washington Post:
  "I know I speak for every American when I say to him today, we are all Georgians".
July 19, 2006:, Jim VandeHei, "Congress Is Giving Israel Vote of Confidence; Both Parties Back Ally, Court Jewish Support", Washington Post, page A05:
  Republican National Committee Chairman Ken Mehlman punctuated the day with a speech to Christians United for Israel last night, declaring that "today, we are all Israelis."
March 11, 2004: Denis MacShane, Guardian Unlimited:
  No progress in human affairs will ever be built on the blood of innocent people. Today, we are all Spanish.
September 12, 2001: Jean-Marie Colombani, "Today, We Are All Americans", Le Monde:
  Madness, even under the pretext of despair, is never a force that can regenerate the world. That is why today we are all Americans.