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
