It was little more than a razor wire and mesh compound of cages, protected from the elements by a metal roof.

CENTERFORSECURITYPOLICY: Guantanamo Bay: five years later

On the other hand, for a compound eye to be effective, its elements must point in lots of directions, in order to cover a wide visual field.

ECONOMIST: Brittlestar eyes

On Thursday, Iraqi police, accompanied by American troops, raided Chalabi's compound -- a raid that Chalabi claimed was engineered by elements of the deposed Baathist regime, under protection of the U.S.-led Coalition Provisional Authority.

CNN: Chalabi suspected of giving U.S. secrets to Iran