Black lights can also show differences in the paper. One more simple way to tell a counterfeit ballot from a real one - the paper itself. There should be a record of a legitimate printing company and the type of paper they used for printing ballots. So, unless the counterfeit ballots from China used the exact same paper, oops. The same holds true for inks. These are actually pretty ingenious and low tech ways to verify a real ballot from a counterfeit. The Dems are not that smart. Watermarks would be great, but in the end not necessary.