To be fair, your 'agriculural automation system' components likely could be used for an explosive device. On the other hand, I once had an airport security age

To be fair, your 'agriculural automation system' components likely could be used for an explosive device. On the other hand, I once had an airport security agent delay me because I had a transparent purple Game Boy Color in my carry-on. He (an older Filipino gentleman) seemed genuinely confused about what it was. It was pre-9/11, coincidentally also in Texas.