What is frustrating as always is that they invoke criminals and terrorists (and for once no reference to paedophiles!) but these laws will be used 99% of the time in civil cases (divorce cases, etc) and against petty crime. I remember when the UK used the terrorism act to freeze the assets of Icelandic banks. Terrorism has just become the keyword law enforcement officials add to the title of any law they want to see passed, no question ask.
http://news.bbc.co.uk/1/hi/uk_politics/7688560.stm