ENVISION WHIRLED PEAS: A letter to Thomas Friedman: Tom, I just saw a PBS program called "Sandwiches that You Will Like" that examines the sandwich in eateries all across America. The show is an wonderful slice (no pun intended) of Americans of all races creeds, colors and professions in a happy mosaic enjoying their lunches. To be brief -I'm no writer- this is the kind of image of America that should play well in Persia as well as Peoria. I hope you have the time to watch this entertaining piece. Your thoughts, please. -Jake