The "bonds" being smuggled into Switzerland are fantasies. They have been coming out of the Philippines, India, and China for several years. No such real bonds exist.

The website on distinguishing counterfeit money fails to note that $5 bills no longer have a portrait in the watermark - they have a large numeral 5 in the watermark window and the words FIVE FIVE FIVE on the other end of the note. This is to force note bleachers to spend more money (at least $10 now) to obtain substrate for their ink-jet $100s.

The linked article on the How Things Work website fails to note that modern image-processing software recognizes security patterns in the designs and shuts down rather than print pictures of notes.