What is the Most Dangerous Martial Art Today?

None! Like a gun, it is only dangerous in the hands of a human being. There is no "one" most dangerous of all martial arts, it does not exist. Two persons can practice the same "exact" system while one of the two is a cream puff and the other absolutely deadly.

People are dangerous, animals in the wild are dangerous under some circumstances but humans are consistently a dangerous species. Any martial system can be used in a deadly and dangerous fashion by the human who decides to use it for nefarious deeds.

If someone says they provide or teach the deadliest system in the world then your being subjected to a sales pitch. "And for only a five year contract at 2 thousand dollars a month you too can be the deadliest human in the world with our absolutely guaranteed fool proof deadly Martial Art system. Join today and get a free uniform!"