 After "The Economist" ran a critique of Amnesty International and human rights in general in its issue dated 24 March 2007, its letters page ran a reply from Amnesty, as well as several other letters in support of the organisation, including one from the head of the United Nations Commission on Human Rights.Rebuttals from officials within regimes such as the Singapore government are routinely printed, to comply with local right-of-reply laws without compromising editorial independence.Letters published in the paper are typically between 150 and 200 words long and had the now-discontinued salutation 'Sir' from 1843 to 2015.