Baloney
The controversy is recent. It's absolute bullshit to claim Pluto's standing as a planet was in question until recently. It has become so just as Ceres was by discovery of other objects in similar orbits. The problem with the demotion of Ceres is that we knew even less about it than we now know about Pluto when the decision was made. It was not as obvious then as it is now that planets will be present in a continuous logorithmic distribution of sizes and that any line drawn on size alone is pretty arbitrary.
None of you who support Pluto's demotion have yet addressed that Pluto is larger compared to Earth than Earth is to Jupiter, yet Pluto is much larger than the vast majority of objects in the Kuiper belt.
Regards,
Mark