Where do you draw the line between education and indoctrination? After all "quod ali cibus est aliis fuat acre venenum".
Do you have to maintain a "program" to carry out an indoctrination scheme? Does it always have to be "forced"?
Perhaps the most powerful indoctrination method is the one that is self sustaining. In totalitarian ideologies, religious or none, there has to be "modus operandi" in charge. However in morally corrupted and intellectually bankrupted society like the current society of the United States, a plutocracy imposed by oligopolistic-fascism have manged to indoctrinate society, not by "imposing" a certain ideology but rather by eliminating all other options. By making sure those who diverge from their predetermined orbit, reach escape velocity very quickly.
Try to mention the word "socialism", use the word "invasion of Iraq" rather than Iraq war, or utter a word about Israel atrocities against the Palestinians for example, and you will be rejected by and from society. Any deviation from the 1/2-sigma-standard-deviation society we live in, will result in total exclusion and expulsion. For those who are not reasonable (as in Shaw's definition7), it becomes extremely taxing to live with such society and perhaps even hard to make a living in it. And for those who are "reasonable" they eliminate any perturbation that might disturb the "current state" and create any change let alone progress. Such society becomes self-destructive rather than self-corrective society. It migrates more and more towards homogeneity and uniformity. It indoctrinates itself by promoting its own decaying values and processes. And it is only in such society the plutocracy can allow and freedom of speech. They know exactly it does not matter who is running his/her mouth the words will be the same.
Take a look at the way teenagers talk or dress, it is almost exactly the same. This is when they are supposed to be vastly different since each is supposed to be discovering the world and forming his/her 4D version of it. Take a look at how adults dress as well, they "follow the trends" exactly in the same way. They are obsessed by the approval of their peers and feeling that they belong rather than doing or saying the right thing. How did it get to the point where we need "casual Friday" to be a formal dress policy? Perhaps after we started teaching "creative writing" and "women studies"! Take a look at the news, no matter which channel you are on it is the same nonsensical issues. The rhetoric might be different to accommodate, and capture, a certain segment of society, but it is all "two minute hates" sessions. And Big Brother presents us with his glorious two options again, beef or chicken. As if the problem is which party is in charge not what policies are being followed.