[quote=Raineh Daze]
Vash isn't capable of preventing all deaths. See: Rem, July (or was it December? Hate these city names. >:T), and that spoilery thing. :p
[/quote]

Really because even though he isn't a super like everyone he is just as dangerous even fighting Superman or Lex Luthor he is smart too so he can talk his way out a problem sometimes.