In contrast, Bertolini has stated that increasingly Aetna views itself as a healthIT company with an insurance component.

FORBES: Aetna's Remarkable Reinvention Underway

Meanwhile, the banking commission is less worried by Credit Suisse than by conglomerates with a heavier insurance component, such as Zurich Financial Services and Swiss Life, both of which own Swiss banks.

ECONOMIST: Credit Suisse and Winterthur