We saw the mass grave at the Moscow Zoo. br A sullen man dug up a human skull br Then held it high for journalists to view. br Forensic specialists arrived to cull br Remains and clues from this forgotten plot br On which the zoo still plans to cage a bear. br The experts guessed these prisoners were shot br For special reasons; no one was aware br Of comparable scenes at urban sites. br No one knew if these bones belonged to spies, br Suspected Jews or zealous Trotskyites, br So none of us displayed the least surprise br When bureaucrats emerged from quiet cars br To hint this might have been the work of czars.