Ezhenito noted some research pointing out the (maybe) surprising bit of research that 6 botnets are responsible for 85 percent of the world's spam. That seems a bit high to me, but the only aspect of spam I am an expert in is *getting* it.
FORTRAN is a good example of a language which is easier to parse using ad hoc techniques. -- D. Gries [What's good about it? Ed.]