Implementations of the Verichip and the process

The Verichip was discontinued from manufacturing in the year 2010 because of privacy concerns and health effects such as possible cancer.
Do they plan on bringing it back this chip in the future with of course improvements?
What are the security measures that a person building this chip will have to implement inside the chip to prevent susceptible cloning?
Even though there maybe improvements are there any other risks and if so do the advantages outweigh the risks?
Would you consider getting this chip if they brought it back and if so or if not why?
