Steven Aftergood (via Alexis Madrigal) makes a pretty compelling case that governments will redouble their efforts to keep their secrets hidden in the wake of Wikileaks:
(I)nstead of subverting secrecy regimes, Wikileaks appears to be strengthening them, as new restrictions on information sharing are added and security measures are tightened. (Technology can be used to bolster secrecy as well as subvert it.)
In fact, Wikileaks may deliberately be attempting, in a quasi-Marxist way, to subvert secrecy by provoking governments to strengthen it. But please try this in your own country first.