A top U.S. health insurer gave the first detailed view of how the problem-plagued rollout of President Barack Obama's signature healthcare law is affecting the industry, saying on Wednesday it had cut its enrollment forecasts by at least a half and expected the government to delay the sign-up deadline. Humana Inc said that because of technical problems preventing millions of Americans from accessing the federal HealthCare.gov website since it opened on October 1, the company had slashed its expectations of signing on 500,000 new plan members to an estimate of closer to 250,000.
