Tufayel Ahmed / Us Weekly: Meryl Streep Opens Up About Her 6 Grandkids, Says She's Like Miranda Priestly as a Grandma - TAP HERE TO ADD US WEEKLY AS A TRUSTED SOURCE - Meryl Streep is making rare comments about her life as a grandma! - The Devil Wears Prada 2 star, 76, has six grandchildren under the age of 10 ...