That has been in the news over here. The pulled the latest episode due to something related in the Boston attack.
And fortunatelly Poland doesn't give an F, and it will be shown here :P And from the description, btw. it has nothing to do with Boston attack apart from the fact some child dies in it.
They also pulled Family Guy because it shows the main character actually winning the Boston Marathon by entering the race with a car and driving over all the other runners.