Mr. Wurf, the leader of the fastest-growing union in the United States, answers the title question with an emphatic Yes. Mr. Buckley, citing "public figures ranging from Calvin Coolidge to Franklin Roosevelt," answers with an equally emphatic No. A heated but frequently illuminating debate that keeps returning to a recent strike by some of Baltimore's policemen after the mayor had refused any form of arbitration. JW: "Mr. Buckley, perhaps by your standards we're not conservatives, but public employees are conservative, and they don't want to strike for the privilege of going without wages or walking around the city hall. They strike because there's nothing else available to them in the course of solving their difficulties."