nicole killion joins us with more. that would be really big. >> exactly, donna. many advocates are saying approving this new bill could be the best hope yet. >> gesten have lived with hiv for 20 years, in part because of the drug that he takes calls truvada. \ >> i am hiv-positive, so i take it to treat my hiv. it stops the replication of the virus in conjunction with the other mets i take. >> and fda panel is considering expanding it to those who do not have it -- hiv. it would be groundbreaking in preventing hiv. >> i think it is an important moment in preventing the epidemic. the possibility that we have a new tool to prevent hiv. >> the fda said the medication is safe and effective and taking it daily could spare patients infection with a serious and life-threatening illness. >> we should not be standing in a way of things that we know are safe. >> but others are concerned about the $900 per month price tag and say that it could reduce other preventive measures. >> they still need to use condoms and -- use condoms and reduce the number of partners. >> had i h