reading through the pwpa, it's easy enough to figure out what the thing that i read at the time, whatever it was, said: it must have argued that tampering with or trespassing on to what was defined as a "public work" could lead to terrorism charges.
but, given that i'm dealing with what may have been a commentary on legislation that was repealed five years ago, this may be quite hard to find. the author may have even taken the page down.
i am acknowledging that the law i was thinking of was repealed, and it might be best to leave it at that.