The Wall Street Journal has posted a letter from Carl Icahn to Blockbuster CEO Jim Keyes, confirming that Icahn will buy Circuit City if Blockbuster is unable: This is to confirm that I, and/or entities affiliated with me, (collectively with me "Purchaser") stand ready to acquire Circuit City if Blockbuster is unable to receive financing to do so or obtain any necessary shareholder approvals after doing satisfactory due diligence. Obviously, this is subject to Purchaser conducting a satisfactory due diligence review of Circuit City which will be done concurrently with Blockbuster and being satisfied as to the results of... ...