US snubs Poland over WW II ceremony?

It is five days before the commemoration ceremony of the 70th anniversary, September 1st, of the outbreak of World War II in Poland and Washington has not yet announced who is going to represent the US administration.

Polish officials had been led to believe the US would be represented by Vice-President Joe Biden or Secretary of State Hillary Clinton. But Prime Minister Donald Tusk seems to have lost all hope that the Obama administration will be sending a high-level official to the ceremony. The ceremony will be attended by Chancellor Merkel, Prime Minister Putin and heads of 12 other states.

Many Polish officials are astonished and see it as a snub but don't say it out loud. Here are some of comments voiced recently: "I would not attach a great importance to the fact that one country will not be represented by a member of the current administration." "There is a very long way from Washington to Poland."

Could that be a retaliation for the Open Letter to the Obama Administration from Central and Eastern Europe???