BICEP1/BICEP2/Keck-Array Conclusions

New BICEP1 results break new ground:
r limit order of magnitude better than previous
Painstaking calibration studies undertaken 

Aggressive ongoing program:
Can we show that gravity wave B-modes exist?
If they do very expensive experiments become justifiable...

"Foreground avoidance" strategy
Observe the cleanest 2% of the sky and target l=70 bump
Use multi frequency if necessary to push below r=0.03