As the talks continue, the National Journal has revealed six of the nation’s largest insurance companies quietly funded an advertising blitz against healthcare reform from September through last month. The companies — Aetna, CiGNA, Humana, Kaiser Foundation Health Plans, UnitedHealth Group and Wellpoint — funneled an estimated $10 to $20 million through the lobbying group America’s Health Insurance Plans. The money was sent to the US Chamber of Commerce and used for television ads by two business coalitions the Chamber established.