was watching Nat Geo.. about martial arts..
Boxing delivers the hardest punches
Muay Thai delivers the hardest and most devastating kicks in the
knee shot
Kung Fu and Tae Kwon Do are the fastest
Gracie JuJitsu allows the exponent to beat an opponent without
throwing a strike
however, the Ninja combines all of these... and balance.. it also
has the legendary one strike killer hit.. a hammer blow to exactly
at the correct place to cause catastrophic damage to the heart,
killing the enemy 
it's part 2 now... how hard the weapons strike..
saw it already.. the deadliest was the katana 
