David Ignatius writes: Former Lebanese prime minister Saad Hariri is being held by Saudi authorities under what Lebanese sources say amounts to house arrest in Riyadh, apparently as part of the Saudi campaign to squeeze Iran and its Lebanese ally, Hezbollah.

A startling account of Hariri’s forced detention was provided Friday by knowledgeable sources in Beirut. It offers important new evidence of the tactics used by Saudi Crown Prince Mohammed bin Salman to bolster his rule by mobilizing anti-Iran sentiment at home and abroad.

Rumors of the virtual kidnapping of Hariri, who resigned as prime minister last Saturday while in Saudi Arabia, have rocked the Arab world; Lebanese officials worry that MBS, as the 32-year-old crown prince is known, wants to force Lebanon into his confrontation with Iran. Some Lebanese analysts complain that the Saudis treat the Hariri family, who have been bankrolled by Riyadh for decades, almost as a wholly owned subsidiary. [Continue reading…]