Of peace and pastrami: Katz's Delicatessen has been on the corner of Houston and Ludlow streets in the heart of New York's historic immigrant Lower East Side since 1888. On the ceiling are signs that read Send A Salami To Your Boy In The Army, dating back to the Second World War. At te tables, you can find William, an energetic, affable African-American waiter who is taking yiddish lessons because, he says, :It is an expressive language that can be understood by many of my senior clientele." The room accomodates more than three hundred customers at its tables all day, every day, and well into the...