“Secret Code Traces Photocopies”
http://www.news24.com/News24/Technology/News/0,,2-13-1443_1819331,00.html
“Secret Code Traces Photocopies”
http://www.news24.com/News24/Technology/News/0,,2-13-1443_1819331,00.html
I am not surprised. With people photocopying money and all.