Legislation To Create The Thought Police

Yesterday the House of Representatives passed a law to exend hate-crimes laws to sexual orientation.  The Washington Times this morning has an editorial about this law.  The editorial reminds us that harming any person, regardless of their sexual orientation, is already a crime.  Why do we need a law against hate?  Admittedly, hate is not a constructive thing, and it would probably be better if all of us avoided it, but why make it a crime?  Who determines exactly what 'hate speech' is?  The Bible speaks out against sexual promiscuity (both gay and straight), if I mention that, is it hate speech?  If my pastor mentions that, is it hate speech?  If this law passes the Senate, it could result in a degree of censorship that all of us would regret.