You forgot to mention Solyndra : http://www.zerohedge.com/news/2012-10-17/taxpayers-recover-0...
For context: DARPA has a budget of almost $3 billion. The risk-weighted investment into Solyndra was probably on the order of the low tens of millions.
What do you mean by "risk-weighted investment"?
The loan to Solyndra was for $535 million dollars of which practically none was returned [1].
[1] http://en.wikipedia.org/wiki/Solyndra#Shutdown_and_investiga...
PG's point was not that failing means you're doing it right, but rather that never failing means you're not pushing hard enough.