**I'm posting this in this NG as this post was rejected by the moderator in
sci.space.tech.**

http://www.space.com/businesstechnol..._031217-1.html

I'm personally not a fan of antimatter propulsion at this time as there's no
safeguarding technology for when the launch or a component during flight
fails. The only way to encapsulate antimatter at this time is through
magnetic containment, which needs power and a complex control system. If
these fail during launch or at any time during the flight the result will be
an explosion which dwarfs that of a hydrogen bomb.