Is the health law to blame for premium cost increases?

FactCheck/iWatch News (Center for Public Integrity): Fact Check: Will Health Care Law Raise Insurance Premiums
Health insurance premiums for employer-sponsored family plans jumped a startling 9 percent from 2010 to 2011, and Republicans have blamed the federal health care law. But they exaggerate. The law -; the bulk of which has yet to be implemented -; has caused only about a 1 percent to 3 percent increase in premiums, according to several independent experts. The rest of the 9 percent rise is due to rising health care costs, as usual. Furthermore, the increase caused by the law is a result of the increased benefits it requires, a factor Republicans generally ignore (10/25).