A vulnerability exists in many critically-minded individuals that allows others to exploit their critical nature to spread propaganda. An attacker who successfully exploited this vulnerability could take partial control of an affected mind.
The mind patch:
The attacker intentionally makes some kind of mistake or gaff while delivering a message they want to be distributed widely. Individuals who exhibit excessive pride in their capacity for critical thought enthusiastically point out the error to one another, laughing at the apparent stupidity of the attacker while inadvertently and uncritically spreading the attacker's desired message as part of the story.
It is difficult to detect when this is done intentionally, but if that was the intention of the Bush administration, it worked rather well to focus criticism on Bush's linguistic quirks rather than substantive issues of policy.
A probably unintentional example from British politics involved the then leader of the Liberal Democrat Party, Charles Kennedy who failed to remember a specific detail of his own party's tax policy at a press conference, a failing he blamed on lack of sleep after the birth of his new baby. His embarrassment was widely reported in the media following the incident along with the details that he failed to remember, thus helping to sell the benefits of his party's tax policy to a wider audience.
The mind patch in bus slogan format:
