High-tech U.S. farm machines harvest Big Data, reap privacy worries - Business Insider

John Deere's enterprise privacy statement, tucked away on its website at http://www.deere.com/wps/dcom/privacy_and_data/privacy_and_data_us.page, shows that the company can collect data on Deere equipment or any devices connected to it such as an iPad, unless the farmer opts out.