Do you really believe it all started in '67? Palestinian terror started several decades before, at least as far back as the Hevron massacre in 1929, and incessantly since then. The "oppressed" Palestinians didn't feel the need to wait till '67 when their foolish Egyptian, Jordanian and Syrian backers tried once again to throw the Jews into the sea.
One dead, three injured in Northern Arizona University shooting (DPA)
from the article: U.S. had operational plans to fight against IDF in 1967