Lobster and Shells

Name: Lobster and Shells
Ingredients: Kosher salt; Good olive oil; 1/2 pound small pasta shells, such as Ronzoni; Kernels from 4 ears of corn (about 3 cups); 6 scallions, white and green parts, thinly sliced; 1 yellow or orange bell pepper, seeded and small-diced; 1 pint cherry tomatoes, halved; 1 pound cooked fresh lobster meat, medium-diced; 3/4 cup good mayonnaise; 1/2 cup sour cream; 1/4 cup freshly squeezed lemon juice (2 lemons); Freshly ground black pepper; 3/4 cup minced fresh dill