In a large bowl, combine the tomatoes, olives, feta, capers and black pepper.
Sprinkle the salt over the shrimp. Heat a large deep skillet over medium-high heat. When hot, add the oil, then the shrimp, and cook until opaque, 2 ½ minutes per side, stirring in the garlic for the last minute. Transfer to the bowl on top of the tomato mixture.
Add the broth to the skillet, increase the heat to high, and bring to a boil. Add the couscous, stir, cover and reduce the heat to medium. Cook until all the liquid is absorbed, 10-12 minutes. Fluff with a fork and add to the bowl of the shrimp and tomato mixture.
Add the lemon juice and toss well. Garnish with fresh parsley and serve immediately.
