we're joined again by mary agnes carey of kaiser health news. and susan dentzer, a health analyst for the newshour. welcome to the program. >> thank you. >> woodruff: susan, what's the latest on what's happened today? we know people were madly signing up, at least some were, what are the final knurls? >> we don't know the actual final numbers for today, but we do know that the department of health and human services says that 1.6 million visitors -- visits were made to healthcare.gov, the federal health insurance web site, and that more than 800,000 calls were placed to call centers. and that, of course, leaves out what happened in the state ex plaining changes. we know -- the state exchanges. we know there are 14 state-based exchanges and the district of columbia, we don't know the numbers there, but it's quite conceivable that potentially another million people have signed up in the past few days. >> woodruff: for anybody who's watching who hasn't signed up, who wants to sign up, how much time do they have with the penalty if they don't? >> we