Learn some history

Howard Zinn:

But if we know some history, if we know how many times Presidents have made similar declarations to the country, and how they turned out to be lies, we will not be fooled. Although some of us may pride ourselves that we were never fooled, we still might accept as our civic duty the responsibility to buttress our fellow citizens against the mendacity of our high officials.

We would remind whoever we can that President Polk lied to the nation about the reason for going to war with Mexico in 1846. It wasn’t that Mexico “shed American blood upon the American soil,” but that Polk, and the slave-owning aristocracy, coveted half of Mexico.

(Via 3quarksdaily.)