Last year, he participated in California's "Top-to-Bottom" review of voting machines that found critical security vulnerabilities in the technologies of electronic voting companies Sequoia, Premier Election Solutions and Hart InterCivic--vulnerabilities that the researchers said could be used to prevent machines from accepting votes, change voting counts and, in some cases, even identify voters.

FORBES: Magazine Article

Of course things are not yet as bad as Zittrain seems to claim, and though I don't often agree with noted free market advocate and libertarian Adam Thierer, his critical review on the Progress and Freedom Foundation blog is well-argued and often insightful.

BBC: Staying safe and taking risks