Cut potatoes into 1/2 inch segments.  Add to a medium saucepan, cover with water, add one tablespoon salt and 1 tablespoon white wine vinegar.  Bring to a boil over high heat reduce heat, cover and cook until fork tender  15 - 18 minutes.  Drain potatoes and place in a shallow bowl, mix with 1 tablespoon white wine vinegar.  Cool to room temperature.  In a small bowl mix together mustard remaining 1 tablespoon white wine vinegar, olive oil and chives.  Add cucumber and cilantro to the potatoes.  Season with salt and pepper, to taste. Toss with dressing.  Mix well.  Serve at room temperature or refrigerate.  Bring to room temperature prior to serving.