1. Sweat leeks, garlic, and dried dill in oil in a large pot over medium heat until soft, 5 minutes.
2. Stir in potatoes and flour; cook 1 minute.
3. Add broth, capers, and 1 T lemon juice; stir until smooth.
4. Simmer until potatoes are tender, about 15 minutes, then reduce heat to low.
5. Add milk, cream, 1 T fresh dill, and all but 1 T smoked salmon.
6. Season with salt and pepper and keep warm; preheat broiler to high.
7. Trim crusts off bread slices to form a rectangle.
8. Cut each slice into triangle and broil until toasted, about 2 minutes.
9. Combine cream cheese, remaining fresh dill, 1 t lemon juice & salt to taste.
10. Spread cream cheese mixture on each triangle. top with remaining salmon pieces and serve with soup.