Given that all blood is screened for contaminants anyway (HIV, Hepatitis, etc.), are you just afraid that someone may catch "gayness" from the blood?
Since no one is sure how one is infected with this malady... one should take no chances, should one now?
If this isn't an act of terrorism then I don't know what is. This behavior should be treated as a crime against humanity, a capital offense, and worthy of public execution. Seems that some lessons must be harsh if they are ever to be learned.