OK, so I'll now address the 3 main issues, Waste, the possibilities of weapons being made from the materials, and Safety.
-Waste- Integral fast reactors reuse their waste products to the point that they are basically ash. (99.5% of the energy is extracted from the fuel, compared to 1% in conventional nuclear reactors)
-Weapons-Plutonium is never separated in the nuclear processes, so you would be unable to make a nuclear bomb from it (unless you already can make nukes, but who cares)
-Safety-
Meltdowns Hanford proved that with there new method of leaving extra room in the Fuel casing, a meltdown is impossible. As it heats up, the fuel expands, but with the extra room it gets to the point where it is no longer a feasible chain reaction, and cools. This experiment was done without any human or computer interference, at full power, with no control rods, if it didn't melt then it won't ever.
Radiation This is hardly an issue anymore, no radiation escapes the reactor. In fact, several nuclear power plants have had farmers rent the nearby land, and the radiation kicked up by plowing the dirt set off alarms in the plants, so they had to make the farmers leave. The job safest from radiation is in fact being on Nuclear submarines




