"Truth is the first casualty of war."
"The rest are mostly civilians."
As Chomsky and Herman wrote, starting a war depends on manufacturing the consent of the public. Fortunately, though opposition to war has diminished to a barely audible voice in the last 50 years amidst the clamor of warmongers' alarms about imagined threats to the Empire, it persists. There is an urgent need to use the limited strength of the peace movement to rally public support to the cause of ending war. Whatever tactics we might use, our first goal must be to awaken Americans to the fact that nearly everything they are told by the mainstream media about US foreign policy is false.
Only when Americans recognize that the corporate media is captive to war profiteers will they understand that war is not inevitable, that it threatens human survival because it enslaves us to fossil fuels, that silence is consent to continue on the path to self-destruction and that without that consent, the Empire cannot continue to wage endless war against the mass of humanity.
I don't know what students are learning in high school these days, but when I was a sophomore I learned how the Hearst newspaper chain created support for war with Spain by calling for a "humanitarian intervention" to help Cuba liberate itself from imperial rule. The result of course was that Cuba, the Philippines, Puerto Rico and Guam, Puerto Rico essentially became colonies of the US. In more recent times, the Vietnam was justified as "self-defense" based on lies about the Gulf of Tonkin incident, Iraq was invaded for a second time on manufactured evidence for the false claim that it was building WMDs and Libya was destroyed based on an unverified claim that Gaddafi was preparing to massacre US-backed "rebels" in Benghazi. There are similar stories to tell about essentially every American intervention since WWII (not to mention WWI itself), for those who want to take the time to explore the history of modern wars.
Given these well-known examples of the US government lying to its people, you might think it would be easy to make the case that they are being lied to about Syria, Ukraine, Iran, Venezuela, Nicaragua, Russia and other nations whose governments have been targeted for imperial expansion. If so, you do not appreciate the degree to which Americans have been induced to unconsciously accept the premises of American Exceptionalism through education, media, and politicians. The only way to break through this wall of denial is to educate the public about exactly how this is accomplished. How else will they learn to critically examine the lies they are being told by virtually everyone in the Western media, politicians, and the Wall Street war profiteers whose interests they serve?
Since 1983, the CIA's propaganda function has been largely replaced by corporate think tanks, the US Agency for International Development (USAID) and its spinoff, the self-proclaimed "private nonprofit" National Endowment for Democracy (NED), which is in fact almost entirely funded by Congress. They use the same techniques of using government funding to influence both US and foreign media to tell the same stories whose scripts the US foreign policy establishment has written. Their function is to weaken governments targeted for regime change, whether through war, insurrection, US-backed terrorist invasions or crippling sanctions.
This is of course only a bare-bones summary of the way that the media is manipulated and why it is important to challenge the official narrative. I hope that I have made the case that it is critical to get people to understand the extent to which they are deceived by their government. Interested readers are encouraged to read the linked articles and to do their own research. The importance to the peace movement of freeing Americans trapped in the prison of their false belief systems cannot be overemphasized. Please join the effort by learning more and joining the fight to free America from the Matrix of lies in which most of us exist.