The United States released its annual report into global human trafficking Thursday and added eight countries, including fledgling democracy Myanmar and Uzbekistan, to its blacklist of those not doing enough to halt it.

Djibouti, Haiti, Papua New Guinea, Sudan, Suriname and Turkmenistan are also now part of the 26-strong blacklist of countries whose governments the State Department believes are not meeting minimum standards to fight people smuggling or slavery.

Kuwait and Thailand found themselves promoted from this "Tier 3" list of worst offenders to the "Tier 2 watch list" of countries making some kind of effort to combat the trade in persons but still under scrutiny. 

Libya, Somalia and Yemen were judged special cases in too much chaos to judge.