Trying to hide the truth about Afghan civilian deaths

Colonel Owen McNally has been arrested and charged under the Official Secrets Act for giving information to a human rights worker in Afghanistan.  Was that information about civilian casualties in Afghanistan?  As Conor Foley writes in the Guardian today, the government is trying to hide the truth about civilian deaths there.  Conor Foley states that a number of British newspapers are reporting allegations about Colonel McNally being "close" to the campaigner Rachel Reid.

On the front page of today's Guardian Rachel Reid has written to defend herself, saying that it is a "nod, nod, wink, wink" libel to link her in that way with McNally.  She says that she was doing her job for Human Rights Watch by asking for information from the NATO official in charge of monitoring civilian casualties.