DAY'S END ROUNDUP

FROM THE BLOGS:
Preventing market distortion - Tim Cavanaugh, Hit & Run
Unicorns and conservative immigration reform - B. Johnson, Red State
What exactly is 'gossip?' - Jonathan Chait, The Plank
Releasing detainees is risky business - Cliff May, The Corner
Freight rail's anti-trust exemption - Matthew Yglesias
Sotomayor: Shred and burn - Jillian Bandes, Townhall
We need a third stimulus - Dean Baker, Firedoglake
The affirmative action problem - Megan McArdle, The Atlantic
Sean Hannity, judicial activist - Jed Lewison, Daily Kos
Don't define an era just yet - Peter Wehner, Contentions
Playing grown-up - Steve Benen, Political Animal
'What the hell do they want from me?' - Andrew Sullivan
Inventorying Pelosi - Ed Morrissey, Hot Air
A 'wedge tweet' - Greg Sargent, Plum Line

OTHER NEWS SOURCES:
Gibbs: Sotomayor regrets her word choice - The Hill
U.S. refutes terror accusations by Iran - The Hill
Obama lays out cyber-security plan - NY Times
Auto union accepts GM deal - WaPo