Following a recent review by the defence department, US troops will now be able to access Facebook.  An assessment of the benefits of using a social networking platform such as facebook outweighed the overall risk to security.  It seems the pentagon will only limit this new ruling to non classified governmental computer particularly with the high number of facebook hack and virus scam occurring to the unsuspecting user.  It is inevitable that this opening will not only make Web 2.0 more accessible to troops and their family around the world but also its vulnerability to the darker side of the internet.