I actually the charm of internet...:)
I guess I can write a bible on misnomer called internet security threat of spywares/sneakers coz the reason we have spyware/sneakers is that there is some public data/information that we have been hiding. Or intend to hide and someone wants to know it. Lol - so it's chick n egg problem.
Technically, it is possible to prevent anyone from spitting on our systems and thwart the curse and vile for sake of hygiene too, and trace the miscreant too quite easily. But these are not challenge to adoption of social media in Governance. The challenge is the mindset. The mindset of public servants, leaders and citizens etc. etc.
I loved this discussion, and having been a part of Government myself, I pretty much understand the concerns revealed.