From now on, if you wish to leave a comment, you must register with TypeKey. TypeKey prevents unauthorized persons from leaving comments and will hopefully stop comment spam and will stop spam robots from taking my site down. The upshot is that, once you're a trusted commenter, your comments will appear immediately. Please note that this sign-in system is for security and not for a silly reason, like The New York Times' registration requirements, which I believe are based on marketing.