GPD Traffic Unit, Greenville, date unknown, photo by Aaron Hines. Original public domain image from Flickr https://www.rawpixel.com/image/9658724/image-person-laptop-public-domainFree Image from public domain licenseCBP Laboratories and Scientific Services (LSS), Springfield, Virginia https://www.rawpixel.com/image/8726464/photo-image-border-public-domain-computerFree Image from public domain licenseCBP Laboratories and Scientific Services (LSS), Springfield, Virginia https://www.rawpixel.com/image/8726568/photo-image-border-public-domain-computerFree Image from public domain license