1.   He eventually took me to an unmarked office above a perfume shop in the port city of Tyre.

2.   My interlocutor was nearly killed some months later when two men with ski masks arrived at his unmarked office in Geneva and pulled out pistols with silencers.

3.   The newly opened privatization center, which is managed by Price Waterhouse, the main company hired by AID, is in an unmarked out-of-the-way office building.

4.   Every day, men carrying tiny stones walk into unmarked offices across this city of crumbling concrete buildings and rotting clapboard homes.

5.   Two weeks into the school year, Princeton professor Peter Singer works in an unmarked office, posts no office hours and teaches bioethics in a guarded classroom.