* The secret $25 billion rival bid for Potash Corp.
* Is Roger Altman a candidate to replace Larry Summers?
* Watch out: Harvard MBAs are storming Wall Street again
* Warren Buffett ♥’s Uncle Sam: “You delivered. People will second-guess your specific decisions; you can always count on that. But just as there is a fog of war, there is a fog of panic — and, overall, your actions were remarkably effective.
* Morning Call: U.S. futures point higher, London falls early, European shares climb, China shares fall and the Nikkei gains.
* Chris Duvous: Private equity lessons from the subway
* The trading of U.S. bankruptcy claims slumped last month
* Jeff Joseph: Bi-partisan pro-growth tax policy demagoguery
* Charlie Gasparino: Mocking Ben Bernanke is bad for America
* Rogue trader Jerome Kerviel: I was just “a small cog in the machine.”
* Do sky-high Internet valuations represent a boom or a bubble? Is there a difference?
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* Nycomed CEO Hakan Bjorklund: “The golden era of pharmaceuticals is over… [discovering new drugs] is looking more and more like a lottery, not an investment strategy.”