Editorial: CVS and Aetna say their massive merger is needed to keep prices down. That remains to be seen

American consumers aren't the only ones struggling with higher healthcare costs. CVS Health's proposed $69-billion purchase of health insurer Aetna is driven in part by the companies' efforts to get control over more of the costs they face, and to make their operations more efficient. The question for regulators, though, is whether the combination results in a company that uses its clout to help consumers or squeeze more dollars out of them.

Healthcare spending