If you read the Wikipedia article[0] on the ‘Anti-terrorism, Crime and Security Act 2001’, you will notice that it is not restricted and applicable to areas other than terrorism – serious economic damage to the UK being one of them. So there is at least some slight hyperbole in calling it a ‘post-9/11 terrorism act’, even though its passage was clearly motivated by 9/11.
As an aside, what exactly is wrong with freezing the assets of a company that does not appear to plan to meet its liabilities?
Icelanders replied with some good pictures: https://www.google.com/search?q=iceland+terrorism&tbm=isch
Then again this is the country that inspired Nineteen Eighty-Four (Minitrue from Orewell's time at the BBC) and The Prisoner.