NEW YORK - A New York imam has declared that he will start a campaign on April 22 to make the April 26 birthday of the Muslim prophet Muhammad a national holiday celebrated by Muslims and people of other faiths.Mohammad Abdul Qayyoom, head of the Muhammadi Community Center in Jackson Heights in the NYC borough of Queens, published a copy of the petition via the center's Facebook page to be signed by other religious leaders. The interfaith initiative asks for an establishment of April 26 as a federal holiday, "so that we can enjoy this day like the joy of Christmas.""One good thing [about]...