By Reggie Rivers   Denver Post Columnist Thursday, December 13, 2001--It would have been far easier for Joyce Meskis,    owner of the Tattered Cover Book Store, to give up the fight. It would have    been cheaper and simpler to give the police access to the purchasing records    of her customers. Everyone would have understood, and no one would have criticized    her for giving the cops confirmation that their suspect did purchase two books    on how to run a meth lab.