All that is true, Kirk44, but keep in mind all the blocking/trapping stuff can be done with a handkerchief as well.
The primary problem with nunchaku today is that 1) they're illegal to carry just about everywhere 2) there are very few things you can pick up off the ground that have 2 solid rods connected by something flexible, so your nunchaku training is not likely to be applicable in a street fight, and 3) unless you train a long time on them and are trained by someone who really knows how to use them in battle, you are probably going to whack yourself with them the first time you try to use them in a fight. This of course, is a major problem, because most people that teach nunchaku today don't know how to fight with them - they only know how to make them look cool in tournaments.
BTW a kali stick can generate just as much, if not more, PSI as a nunchaku can, and no one's ever been arrested for carrying a dowel on the street
