There is no danger in Saudi's interior. The "danger" is on the Yemani border, where Saudi troops are massing for a possible invasion, and at the very least a defensive posture against the Houthi tribesmen-terrorists that have taken over most of Yemen.
This is nothing less than Obama slapping the Saudis in the face for daring to challenge his newest lover, Iran's Ayatollah Ali Khamenei.