Americans who couldn't enroll in federal Obamacare insurance plans over the weekend because of computer glitches or long waits will now have until next Sunday to sign up, federal officials announced early Monday. "We are pleased that the vast majority of consumers were able to apply and pick a plan through HealthCare.gov or its call center without a problem," said Aaron Albright, spokesman for the U.S. Centers for Medicare and Medicaid Services. The special enrollment period begins Monday and ends Feb. 22.