Second Horizon, Space Review
"The New Horizons 2 proposal was an effort to gain approval for a mission that was not recommended by the planetary science decadal survey or any other independent group. But the NASA review panel recommended that any New Horizons 2 proposal should also be reviewed by the National Research Council's Committee on Planetary and Lunar Exploration, or COMPLEX, which was considered to be the "the keeper of the decadal." No such review occurred and New Horizons 2 was soon forgotten."
Keith's note: Interesting how New Horizons supporters hyped the Decadal Survey backing of their mission to get it approved and then turned around and tried to push a mission on NASA that had no Decadal Survey backing or credibility whatsoever. #hypocrites.