From: adam.w.krajewski@gmail.com   
      
   Thanks for all answers, I will read through all links when I have some time.    
   One thing I have to say now, is that I don't think it's neccesary to launch   
   multiple missiles with mass million of tons each. That seems a bit too much,   
   especially when at certain velocity energy starts to be equal to   
   matter-antimatter anihilation energy,   
    so 1 million tons of mass would be like 43000000 gigatons at 0.86 c. That's   
   kindoff a lot... Even 1000 tons makes 43000 gigatons bang, that's still a lot.   
   Make it a shotgun, shower entire side of planet and shockwave + change of   
   climate kills everything.   
    There can be even less mass used I think, but I need to check it using   
   nukemap or something.    
   Interesting idea about the detection system that uses antimatter, could be   
   used for a good story, a system surrounded by antimatter and having just a few   
   entry points for incoming interstellar cargo...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)