Couric to Interview Palin

Via TPM, two women with something to prove. Couric still wants to show America she's got the chops while CBS struggles for ratings, and Palin probably needs to explain why she's got the chops to run the country when McCain's own adviser says Palin couldn't run a company.

My only question: Why two nights? Is the campaign forcing the networks to stretch the exposure in order to get an appearance at all? Or are the nets looking to milk the Palin phenomenon for all it's worth?