1. Process first 7 ingredients in a food processor 30 seconds or until thoroughly blended. Transfer to a bowl, and cover and chill 1 to 24 hours.
2. Cook pasta according to package directions; drain and rinse with cold water.
3. Place cooled pasta in a large bowl. Stir in olives and next 3 ingredients until well blended. Add yogurt mixture, and stir just until well coated. Gently stir in feta cheese. Cover and chill 1 hour.