According to this report from Amnesty International, in cooperating with the US-led "war on terror", the Pakistani government has committed human rights violations against hundreds of Pakistani and foreign nationals. Hundreds of people have been arbitrarily arrested and detained in secret; becoming victims of enforced disappearance. Many have been tortured, with their families subjected to harassment and threats. The right to habeas corpus has been systematically undermined, and hundreds of detainees have been unlawfully transferred (sometimes in return for money) to other countries. Amnesty argues that such transfers violate Pakistan’s Extradition Act and the principle of ‘non-refoulement,’ which prohibits the transfer of people to countries where there is a risk of them being subjected to serious human rights violations such as torture and other forms of ill-treatment or enforced disappearance.