BY ARIN GREENWOOD. On Saipan, the most populated of the Northern Mariana Islands, people eat a lot of SPAM. SPAM sushi, SPAM-fried rice and SPAM-n-Egg McMuffins are just the start. In fact, SPAM-heavy foods are so common there that grocery stores devote entire aisles to various canned meats, with SPAM in its many varieties (Hot "˜n' Spicy, Low Salt, Smoke Flavored, Lite and so on) taking up the majority of shelf space. In Saipan, SPAM is kind of a default food, eaten as a matter of course for... READ ON