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    Millions Must Change Insurance Plans

    A woman looks at the HealthCare.gov insurance exchange internet site October 1, 2013 in Washington, DC. US President Barack Obama's Affordable Care Act, or Obamacare as it is commonly called, passed in March 2010, went into effect Tuesday at 8am EST. Heavy Internet traffic and system problems plagued the launch of the new health insurance exchanges Tuesday morning. Consumers attempting to log on were met with an error message early Tuesday due to an overload of Internet traffic. AFP PHOTO / Karen BLEIER        (Photo credit should read KAREN BLEIER/AFP/Getty Images)

    Karen Bleier/AFP/Getty

    Despite assurances that those content with current insurance plans could keep them after Obamacare becomes law, an estimated 50 to 75 percent of those with individual health coverage will have to replace their polices—and the Obama administration has known for three years. Sources in the Affordable Care Act say many Americans will receive a "cancellation" notice due to their policies not meeting standards of the upcoming law. The original policy stipulated policies from March 23, 2010, and on would be honored, but tweaks by the Department of Health and Human Services amended it to mandate a cancellation if any part of the policy was significantly changed after that date.

    Read it at NBC News