Chechen Islamist rebel leader Dokka Umarov on Tuesday claimed responsibility for ordering a suicide bombing that killed 36 people and injured hundreds more at Moscow's busiest airport in January.
Troubled Mexicana de Aviacion, Mexico's largest air carrier, on Sunday said the company will indefinitely suspend several international flights starting on Monday, including Madrid, London, Caracas and Sao Paulo.
Over the past week, images and video of a Westjet 737 making a "scary" approach have been making the rounds. We examine what went right in that situation.