Dan & Emma visit the UK's Environment Agency; a glimpse of the web 2.0 wave lapping at the defences of a large institution.

Punning their way through a heated session with the Press Office, our explorateurs explain Twitter using pen & paper (because the Gov blocks the internet) and debate the horror of letting the public have a say.

The moral of the story? "And so we find that social media provokes people to approach things differently; not just how they communicate, but how they organise stuff. Being authentic is the way to social media success. Mashing up public consultations and social media will end up looking more like thinkpublic's animation The story of co-design."