[Photograph: Adam Kuban] From Slice'r Matt comes an email heads-up that Vice President Joe Biden and his wife, Jill, visited Brooklyn's River Cafe for a belated Valentine's Day meal. The New York Daily News reports: As the veep and his wife dined, Secret Service agents gobbled down pizzas from the nearby iconic Grimaldi's Pizzeria. They always say that cops (or in this case, law-enforcement/security types) know where to eat.... More