all the function iñrÑi lost.ÑixdÑxd >> ifill: plus, they say you can't buy love, but leave it to paul solmanure out the economics of online dating. findçó your mate. you have to set up your data profiling and go on a lot of dates that don't do÷d anywhere.ÑiÑiñrñr0lñrxdçó xdñrxdxdçóñr >> woodruff: those are some of the stories we're covering on tonight's pbs "newshour." >> major funding for the pbs newshour has been provided by: >> this is about more than work. it is about growing a community. everyday across the country, the men and women of the i.b.e.w. are committed to doing the job right, doing the job safe, and doing the job on time. because while we might wire your street, we're also your friends and neighbors. i.b.e.w. the power professionals in your neighborhood. >> at lincoln financial, we believe you're in charge. you're the chief life officer >> supported by the john d. and catherine t. macarthur foundation. committed to building a more just, verdant and peaceful world. more information at macfound.org >> and by the alfred p. sloan foundation. supporting science, technology and imp

this is economics correspondent paul solman reporting for the pbs "newshour". >> ifill: it's been an important week for the healthcare law that may provide the cornerstone for president obama's legacy. more than 11 million people have signed up for insurance coverage in the second year of the new marketplaces. that's higher than year one, when 6.7 million people ultimately enrolled through federal or state exchanges. but there are big questions ahead. in just two weeks, the supreme court will hear its second challenge to the law-- this one about whether states can provide subsidies to buy insurance sold through the federal exchange. more than 80% of enrollees have been eligible for the subsidies and 8.6 million of those who signed up this year enrolled through the federal exchanges. sylvia mathews burwell is the secretary of health and human services. i sat down with her earlier today at the agency's headquarters. secretary burwell, thank you for joining us. you announced this week 11 people have now signed up for the affordable care act but that the numbers could change? >> 11.4 mil

paul solman, reporting for pbs, newshour style. >> woodruff: childhood obesity remains one of the largestc health problems in the u.s. there have been a number of major campaigns to combat it and today, those efforts got a big boost. here's jeffrey brown. >> brown: there has been no shortage of initiatives in recent years to try to curb the problem, and last year the government reported some progress in that fight. the rate of obesity among children 2 to 5 years old has dropped from about 14% in 2004 to 8% in 2012. the robert wood johnson foundation has been a key player in all of this, committing half a billion dollars since 2007. today it pledged another $500 million over next ten years. its president risa laviso mourey made the announcement at an event with the first lady in new york today. she joins me now, and for the record, the foundation has been a funder of the "newshour" in the past. so welcome to you. as a starting point, there really has been progress, right? so why the renewed effort? >> there has been progress indeed. you quoted some important statistics, a leveling off afte

economics correspondent paul solman has co-authored a new book on the ins and outs of the benefit systemnd tonight he shares some of what he's learned. it's part of our ongoing reporting: "making sense," which airs every thursday on the newshour. >> reporter: it's often said that aging america faces a retirement crisis, and according to the aarp, the main source of income for nearly half of americans in older age is social security. a simple system established during the great depression to provide a safety net for the indigent in their old age. today, it's become a mountain of rules, more than 2000 of them, successfully climbed only by those who get good guidance from social security or from someone like economist larry kotlikoff. a few years ago on this tennis court on a somewhat more hospitable day. he asked me a question: >> what are you doing about social security. >> and i said, "we have it all figured out as i absolutely thought we did. we're going to wait until 70, and then we get the maximum benefit. >> right, and i figured you didn't know what you were doing so i asked how old