A little while ago, AEI got widely pilloried for offering scientists $10,000 for a critical assessment of the policy-relevant portions of the IPCC report. Meanwhile, Virginia Tech just paid Robert Kennedy Jr. $20,000 for an hour-long speech criticizing President Bush’s environmental record. Point being, there’s lots of money sloshing around, and while funding sources are not irrelevant, they’re disproportionately emphasized by all sides.