Did A Bomb Bring Down Russian Plane?

Mystery and confusion surrounded the final moments of a Russian jetliner that plummeted suddenly from high altitude to the Egyptian desert, killing all 224 people aboard. The airline Monday ruled out pilot error or a technical fault, but Russian aviation officials dismissed those comments as premature.

Some aviation experts raised the possibility that a bomb on board the Metrojet Airbus A321-200 brought it down, while others cited an incident in 2001 when the aircraft grazed the runway with its tail while landing.

James Clapper, the U.S. director of national intelligence, said that while there is no direct evidence of any terrorist involvement yet, it couldn’t be excluded that the plane was brought down by Islamic State extremists in the Sinai Peninsula.

ABC’s Tom Rivers joined us from London.