Two years ago, there was a line that stretched down the block at Kaliwa, the restaurant from prominent D.C.-area chef Cathal Armstrong that focuses on multiple cuisines from Asia. Its prime location at the Southwest Waterfront, coupled with a menu full of flavors from the Philippines, Thailand, Vietnam, and Korea, drew tourists and locals alike to the shiny new Wharf development. They could eat at new businesses from a handful of proven D.C. chefs, stroll by the Washington Channel while