Kissinger on the Indians

Yes I finally got the transcript (very recently released by the White House) of the actual telephonic conversation that took place in nov 1971 between Henry Kissinger, the then national security advisor of the US, and President Nixon where Mrs. Indira Gandhi was called an "old bitch" and the Indians "bastards". It is understandable that, in informal and casual chat, usage of slangs like those are not uncommon and should not be taken seriously. But I just dont understand why it was necessary to make it available to the public when there is a risk of misunderstanding and causing damage to the sentiments of many people inspite of the fact that "the govt. of the US can never mean any harm to any people".