Senator Obama's response to the media finding his stem cell ads to be false, is to air more of them. The Democrat candidate's camp is claiming that Senator McCain opposes "stem cell research". In the latest ad, heard running on WLW radio in Ohio on 10/6, there is no distinction made between adult stem cell, umbilical cord stem cell, and embryonic stem cell research. Obama, in addition to counting on his supporters to not know the difference between the various forms of stem cell research, also relies on them to be unaware that McCain has a position opposite to that which the ads claim.