LOS ANGELES (Hollywood Reporter) - Miramax Films is developing a satirical comedy with the former editor in chief of the Onion. "Homeland Insecurity" will track the misadventures of two Arab-Americans who are mistaken for terrorists while on a business trip to Texas. Robert Siegel will write the screenplay; he has co-written the script for "The Untitled Onion Movie" for Fox-based Regency Enterprises.