This is a sincere tragedy for Poland and NATO is rattled. It happens sometimes.

...As Poland's national unity fractured over plans to bury president Lech Kaczynski in a castle alongside kings and heroes, officials in Warsaw and Moscow released the first results from analysis of the plane's black box flight recorders.

"The crew was aware of the inevitability of the coming catastrophe, if only due to the plane shaking after the wings hit the trees -- which we are certain happened," Poland's chief prosecutor Andrzej Seremet told commercial radio.

Colonel Zbigniew Rzepa, a Polish military prosecutor, said the pilots were aware of the imminent crash as the last seconds of the voice recordings "were dramatic", but did not elaborate.

The Polish presidential Tupolev Tu-154 crashed in thick fog Saturday near the western Russian city of Smolensk while taking a delegation to a memorial service for a World War II massacre.

All 96 people on board were killed....