They can be, of course, but one UK local councillor is already claiming that postal votes are for sale in his area for just £30. Future e-votes could be as well.
Voting that takes place in front of neutral scrutineers is not perfect but at least in a polling booth you can ensure your vote is free. If someone stands over you and watches you put your vote in an envelope then marches you to a post box or stands over you while you access a “secure” e-voting website there is no way to tell if you have been coerced or bribed.
The VoxPolitics blog has more on this and other e-goverment issues.
