That's quite interesting. Apparently, the t-shirt was a security threat. I'm quite curious as to how they arrived at that conclusion. Is the t-shirt going to subliminally trigger some kind of impulse in other passengers, turn them into zombies, and cause them to rip apart the plane?
How did they arrive at the conclusion that it would cause offence to other passengers? How many passengers have to be offended for something to be deemed offensive? Did anyone complain? If he had worn a similar t-shirt with Mahmoud Ahmadinejad's picture emblazoned on it instead, would he have been barred from boarding the plane? If so, good for them, at least then they'd deserve kudos for consistency when applying stupid policies.
As far as can be gathered from the article, no law has been broken by Mr. Jasson. In fact, he is threatening to take legal action. Here's hoping he succeeds. After all, freedom of speech isn't supposed to arbitrarily stop when you say something people don't like to hear. Right?