According to NewsBusters, we can add vandalizing ancient art work to rape and overall uselessness on the United Nation's resume....
"...Spectacular prehistoric depictions of animal and human figures created up to 6,000 years ago on Western Saharan rocks have been vandalised by United Nations peacekeepers, The Times has learnt.
Archaeological sites boasting ancient paintings and engravings of giraffes, buffalo and elephants have been defaced within the past two years by personnel attached to the UN mission, known by its French acronym, Minurso.
Graffiti, some of it more than a metre high and sprayed with paint meant for use for marking routes, now blights the rock art at Lajuad, an isolated site known as Devil Mountain, which is regarded by the local Sahrawi population as a mystical place of great cultural significance.
Many of the UN “graffiti artists” signed and dated their work, revealing their identities and where they are from." (Read the entire article)
Read the comprehensive story about this at NewsBusters.
...and while you're reading, keep this in mind:
"The United States has the maximum assessed contribution to the UN regular budget -- 22%. In 2005 the assessed amount is $439,611,612." (source)