Also, two different bodies within the U.S. government have published reports on religious freedom: the Department of State (since 2001), and U.S. Commission on International Religious Freedom (USCRIF; since 2003). Finally, the DOS' Office to Monitor and Combat Trafficking in Persons also publishes Trafficking in Persons Reports (TIP) that include some coverage of North Korea. The TIP reports series began in 2001, following the passing of the Victims of Trafficking and Violence Protection Act of 2000, with North Korea beginning to be briefly covered starting in the 2003 report, and more fully covered beginning in 2005. The Country Reports on Human Rights Practices issued by the DOS noted every year the difficulty of having detailed an up-to-date information, and instead relying on sparse information collected over several years. This was especially the case in the during the 1970s and 80s, and began to change in the 1990s with more witness accounts, while continuing to note a lack of more detailed and more timely information. As more reports became available, the DOS and USCRIF reports have frequently cited reports from the United Nations, South Korea's "Korea Institute for National Unification" (starting in 1996), nonprofits (especially the "Committee for Human Rights in North Korea" and "Data Center for North Korean Human Rights", since their establishment in the 2000s), and from the press. Annual general reports 2000–present     The Citizens' Alliance for North Korean Human Rights (NKHR; South Korea-based nonprofit founded in 1996) works in researching and disseminating information about the human rights violations in North Korea. It also runs assistance programs for North Korean defectors. The Database Center for North Korean Human Rights (NKDB; South Korea-based nonprofit founded in 2003) specializes in collecting and analyzing and maintaining a database of human rights abuses, which as of 2017 included the accounts of over 40,000 individuals and 60,000 cases of human rights violations. The Committee for Human Rights in North Korea (HRNK; U.S.-based non-profit established in 2001) is known for its original research based on its adept use of satellite imagery, defector accounts, and even information coming directly from inside the country. Its published research has been relied upon as sources in reports issued by the United Nations and governments. HRNK has issued three types of reports: reports analyzing the situation on prison camps, reports on other human rights issues in the country, and reports on North Korea's leadership and institutions, as well as policy briefings addressed at the international community.