Got Any Evidence For That?
Anyone who opposes Nasa's plans can stay PC by keeping their mouth shut. There is no need to volunteer support you don't feel.
All this is assuming there is any pressure to be PC at all. We have heard all kinds of barbs thrown at the plans so that claim is a little suspect although the impact of Goldin's tenure probably balances that. It's well known there is a faction in NASA trying to undercut the Mars portion of the plan despite it's support by Griffen and Horowitz.
Regards,
Mark