http://nowiknow.com/the-trail-ink-left-behind/
for more than 50 years, the U.S. government has been sampling ink from thousands of pens, all in an effort to stop fraud...
Today, there’s a digital database of ink types; an ink sample can be matched against one of the library’s 11,000 or so samples in a matter of hours. All the Secret Service needs is a sample of the ink used ...
And in some cases, the ink itself may have a tracker embedded. Per a behind-the-scenes book on the Secret Service, “most ink manufacturers now add tags so that the Secret Service can trace the ink.”

What about type ink? Who cares. The first Kenyan didn't.