Select saute setting on a 6-qt. electric pressure cooker. Adjust for medium heat; add bacon. Cook until crisp, stirring occasionally. Remove with a slotted spoon; drain on paper towels. Discard drippings, reserving 2 tablespoons in pan. Add butter to drippings in pressure cooker. Cook and stir onion, red pepper and chiles until tender, 7-9 minutes. Add garlic; cook 1 minute longer. Press cancel., Drain clams; pour juice into pressure cooker. Set clams aside. Stir in potatoes and stock. Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 4 minutes. Allow pressure to release naturally for 4 minutes; quick-release any remaining pressure. Select sauté setting and adjust for low heat. Add clams, cream, taco seasoning and 1 tablespoon cilantro; simmer, uncovered, until mixture is heated through, 4-5 minutes, stirring occasionally. Press cancel. Serve with bacon and remaining 1 tablespoon cilantro.