Pre-Marketing: Libor's failed whistle blower

* Douglas Keegan: My thwarted attempt to tell of Libor shenanigans

* Luke Timmerman: Tough questions on cancer cost-effectiveness

* Vs. Samsung: Key witness no longer works at Apple, doesn't want to testify

* Morning Call: U.S. futures point lower, European shares extend rally and the Nikkei climbs.

* John Abell: Facebook needs a new CEO

* SEC: Insider trading on CNOOC-Nexen deal

* Dave McClure: Yahoo should think pink, not purple

* It's complicated: How much money did Wilbur Ross really raise?

* Politico: Did GOP leaders quash the "Solyndra rebellion?"

* Gary Silverman: For Sandy Weill, it's all about the stock price

* Nick Bilton: Innovations snuffed out by Craigslist

* Sam Mamudi: An Olympics only the sponsors could love

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