A co-pilot on a Dubai–Tel Aviv flight stabbed the captain and tried to crash the plane, and passengers stopped him — a near-disaster avoided, but a worrying sign that the threat can now come from inside the cockpit.

• The co-pilot stabbed the captain and put the plane into a steep dive before passengers dragged him out of the cockpit and tied him up with headphone cords.
• The wounded captain got the cockpit door open; two off-duty pilots then landed the plane safely in Saudi Arabia with all 174 people alive.
• An Israeli passenger, a plumber, helped pull the controls back — he said he learned from a TV show about plane crashes; a dentist on board treated the captain.
• The attacker is an Omani citizen; Israel believes he was radicalized and acted alone, while Trump has floated an Iran link that investigators have not confirmed.
• The incident raises hard questions about airline screening — how a knife got on board — and about how little airlines vet and disclose about who is flying.

Outlook: Expect pressure on Gulf carriers and aviation regulators to tighten crew vetting and cockpit security as the investigation in the UAE continues.