I think that the conservatives in Poland are realizing that the Left has managed to create a myth in the past decade that the USSR wasn't really as bad as it was, and that Communism isn't as evil as it's reputed to be. This myth has the potential to place the West in grave danger in the future as people forget the past, which is the Left's intent. Should Communism rise again, either in the East or the West, Poland may find herself the first to be re-enslaved due to either distance or isolation from the United States. It's imperative to dispel this myth in the clearest and harshest manner possible before it can take further hold. People must be made to understand the true evil of Communism, and that is something the Left deeply wants to avoid.
I fear for the new Polish government. I have no doubt that those agents of the Left, not just in Russia but all over the West as well, will stop at nothing to keep these documents from coming to light. There is already rumbling about the EU tring to take Polish voting rights away over another issue (though I have no doubt that it will be really for far more than that).
When the Stasi records were outed fifteen years ago it set their cause back for years. Just imagine what may come out of Poland. I fully expect Russia (with EU collusion) to try to starve Poland for fuel, and this might be a good time to do an end-around via Iraq, Turkey, and Romania, and perhaps lump in Ukraine as well for good measure.
As always (1683, 1919-21 Russo-Polish war, 1939, and now the present...), valiant Poland stands ready as the tip of the spear against totalitarianism.
I hope and pray our own leaders recognize the historical implications of this, and exercise our influence accordingly to strengthen/support our loyal ally.
Nothing too complicated about this, really; just remember what the French did, then do the opposite.