http://www.ktvu.com/news/news/local/us-agency-recalls-23-million-toilets-over-risks-ex/nSBHJ/.

Saw this on the news last night. I already installed one of the repair
kits in my wife's mother's house. It was a bit of a pain to work the
flexible metal band past obstructions in the toilet tank and slide it
under the plastic pressure tank, but any reasonable handy person could
do this job in ten minutes at most.

What's odd is that there were already places in the plastic pressure
tank for the self tapping screws to go. This means that the manufacturer
probably had considered a steel band as a safety back-up when the
product was designed and the tank was molded, then decided not to
include it.

This is not the type of toilet I would ever consider. Too complicated,
for no good reason.