San Antonians love Cary Clack for the sparkle of wit and wisdom he brings to them in his column in the <I>San Antonio Express-News.</I> But his style and sensibility make his work equally popular far beyond that city. He offers pithy, probing coverage of national issues such as terrorism, racism, and child abuse, but his keen sense of humor often turns to the stuff of everyday life such as the inexplicable power of Krispy Kreme doughnuts and his terror of clowns. The columns...