Human rights officers working under the joint aegis of BINUB and OHCHR have often been assiduous in reporting on and advocating locally for an end to abuses, but BINUB has not often made use of their wealth of information to publicly denounce abuses.[272] BINUB did not sign on to the joint letter on impunity, discussed above. A report on freedom of expression, drafted by human rights officers in 2008, has not yet been published due to disagreements over the timing of the report and the politically sensitive nature of some material within.[273]