Bahrain is blaming a recent explosion at the country's main oil pipeline on its regional rival, Iran. The state-owned pipeline near the village of Buri exploded Nov. 10. The next day, Bahrain's interior minister issued a statement describing the event as a terrorist attack, saying it was carried out under Iran's direction. Bahrain's foreign minister tweeted about the incident as well, calling it a dangerous Iranian escalation. Saudi Arabia, Kuwait, the United Arab Emirates, Oman and others have also alleged Iranian involvement, which Iran denies. But the Saudi decision to increase security at its own oil and natural gas facilities suggests the explosion was indeed caused by a terrorist attack or sabotage....