>> all right, tim frye from columbia university, thanks so much. >> thank you. ♪ >> now to our signaturea report released this week says americans spend more than $300 billion a year on prescription drugs, about a thousand dollars per person. some of the most expensive are medications known as biolojics. a relatively young and revolutionary class of medicines. but are americans paying more than they need to, when less expensive generic versions of these drugs are available in many other countries? >> philip deluca is enjoying retirement after working decades on a long island railroad. the 71-year-old stays busy with his ten grandkids. >> grandpa's crew. >> lately it's been difficult to keep up. >> how has your energy been? >> no. i can't do the things i did 10, 12 years ago. >> patricia is his wife. >> he became more tired, frustrated with not being able to do the things he could do before. >> his bone marrow wasn't producing enough blood cells, and if the levels dip too low, it could be life-threatening. he had two choices, blood transfusions or medication that would boost his red blood