Here's where Amazon's reputation for cheap fakes is biting them - I'm not risking food from them, since I can't fully trust the integrity of their goods.
But Trader Joe's usually has them too. Safeway sometimes does.
It's not that it's impossible, it's just that they don't have the same "staples" status they have in Europe. Usually, you find raw nuts in the cooking/baking ingredients area, while salted & roasted are considered "party food". And they're more likely to not have the party food variety than the raw variety.