She said sales of radio frequency identifiers are escalating around the world, and a company in Australia as of June 2016 sold more than 10,000 implantable chips with do-it-yourself kits.
"Each kit costs about $100 and includes a tag and an injection tool," Harris said.
The Wall Street Journal has reported an estimated 30,000 to 50,000 chips have been sold globally
http://www.reviewjournal.com/news/politics-and-government/nevada/outlawing-microchipping-humans-not-so-far-fetched-nevada-senator
SOME my want one in order to find them if they should get lost returning home from the BAR
My cat has one. There has been talk about this for decades, but it is almost a moot point now with facial recognition and DNA sampling progressing so much.