Teeth, among other Nine Inch Nails releases since 2000. The album features a thermo-chrome heat-sensitive CD face which appears black when first opened, but reveals a black binary code on a white background when heat is generated from the album being played. The binary sequence translates to "exterminal.net", the address of a website involved in the alternate reality game. Reznor displayed displeasure at the extra dollars added to the CD's price in Australia for the thermo-coating. Included with the album is a small insert that is a warning from the fictional United States Bureau of Morality (USBM), with a phone number to report people who have "engaged in subversive acts". When the number is called, a recording from the USBM is played, claiming "By calling this number, you and your family are implicitly pleading guilty to the consumption of anti-American media and have been flagged as potential militants." It was named one of the best album covers of 2007 by Rolling Stone. Promotion While work continued on the album, Reznor hinted in an interview that it was "part of a bigger picture of a number of things I'm working on". In February 2007 fans discovered that a new Nine Inch Nails tour t-shirt contained highlighted letters that spelled out the words "I am trying to believe". This phrase was registered as a website URL, and soon several related websites were also discovered in the IP range, all describing a dystopian vision of the fictional "Year 0". It was later reported that 42 Entertainment had created these websites to promote Year Zero as part of an alternate reality game. The Year Zero story takes place in the United States in the year 2022; or "Year 0" according to the American government, being the year that America was reborn. The United States has suffered several major terrorist attacks, and in response the government has seized absolute control on the country and reverted to a Christian fundamentalist theocracy. The government maintains control of the populace through institutions such as the Bureau of Morality and the First Evangelical Church of Plano, as well as increased surveillance and the secret drugging of tap water with a mild sedative. In response to the increasing oppression of the government, several corporate, government, and subversive websites were transported back in time to the present by a group of scientists working clandestinely against the authoritarian government. The websites-from-the-future were