Air Canada grounded a pilot after social media sleuths revealed he posted a string of anti-Semitic messages across his various accounts, which have since been deleted. The outrage comes in the aftermath of Hamas's brutal assault on Israel last weekend. First Officer Mostafa Ezzo, who is based out of Montreal, even posted a photo showing him in his uniform with a Palestinian flag. Ezzo piloted a B787 aircraft. 'We are aware of the unacceptable posts made by an Air Canada pilot. We are taking this matter very seriously, and he was taken out of service on Mon, Oct. 9. We...