Circular saws are responsible for nearly 10,600 injuries per-year with 56 percent of those injuries occurring at home to the DIYers that don’t frequently use them.  Together circular and table-saws  are responsible for  more then 4,000 severed fingers each year in the USA alone.  There’s no way of getting around the scary fact that circular saws are inherently dangerous by design, an until there’s a safer better way of doing the job they do, they’ll be around and dangerous still for a long time to come.