Science Discussion Points
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(*) What would be the impact of a positive B-mode detection? 
(*) What would be the impact of no B-mode detection at a level of r=0.01?
(*) What are the arguments that r is larger than 0.01?
(*) What would be the value of a mission that measured lensing B modes 
very well, but did not detect primordial B modes?
(*) What priority would you give a $1B investment in a CMB polarization 
mission compared to other possible astrophysics space missions? 
(*) If you think it is worthwhile, how would you articulate this to colleagues?