graves across the cemetery and just guessed, guessed, the identities. the white house has announced that two u.s. soldiers will receive post hume muss medals of honor for actions during the korean war. relatives will receive the medal froms president obama in may. smokers, well, you may not like this next story. soon there could be t-shirts for sale that show what the smoke is doing to your lungs. it's today's connection. here's stephanie elam. >> reporter: pollution, it may be all around you but sometimes it's hard to see. with what started as their final project, these two new york university graduate students are working to change that. >> pollution or cigarette smoke it seems like this large problem, no one knows how to attack it. making a shirt that's heart or lungs brings it down to ef everyone's level. >> reporter: they created t-shirts that change color. >> healthy lungs, that's the