How high?

While writing last night's post, a sick question occured to me: how high is Bush's pyramid of skulls? So, I tried to work it out: (Warning: sick maths follows):

1. Assume a cubical skull (I just love the way physicists say things like this; its so they stack nicely);
2. Assume the volume of a single skull is about 2 litres, or 0.002 cubic meters (not unreasonable, looking at the cast on my mantlepiece, and if its too large, call it packing fraction);
3. So the volume of 655,000 cubical skulls is 13,100 cubic meters - enough to fill five standard Olympic swimming pools or bury a rugby field to a depth of 1.3 meters;
4. If we use a 45 degree cone, with height equal to radius (to make the maths simple), we have v = 1/3 pi r³. Solving for r gives a final height of 23.2 meters, or 76 feet for those still stuck in the dark ages. So if stacked on the White House lawn, they would be taller than the White House.

Interestingly, the above website also gives the floor area of the White House: 55,000 square feet, or 5100 square meters. So Bush's pyramid of skulls would fill every floor to a depth of 2.5 meters - burying the President and his staff in the death they have caused.

Correction: As pointed out in the comments, I'm out by a factor of ten in the total volume, which means the pile is somewhat smaller (only half the height of the White House). Teach me to use a calculator in the morning...