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Attendees work on laptops during the Google I/O developers conference at the Moscone Center on May 15, 2013 in San Francisco, Calif. - 

It seems like almost everyday we hear about the ways in which our government is using Silicon Valley companies like Google, Facebook, Apple and Yahoo to -- potentially -- spy on us. But Valley historians say it shouldn't be a complete surprise considering the Valley’s long history with defense.

But let’s back up, the history of Silicon Valley dates back to the 1930s. Back then, it was known as the “Valley of the Hearts Delight” and agriculture was its main business.

And the latest monthly jobs numbers come out tomorrow, what can we expect?

Follow David Brancaccio at @DavidBrancaccio