I get what you are saying but.... if it can decay into a photon isn't that the same as emitting a photon?
The first line quoted above is "but does not emit or absorb light like “normal” matter."
If it can generate a Photon (by decay or someother means) it can't be dark.
I'm not that smart but Dark Mattter/Energy thing just stinks of take a stab in the dark (no pun intended). I think some where we have some constant of the universe calculated wrong, or we are estimating the mass of the galaxies wrong.
Is proposing a bill to the council illegal (when there is a conflict of interest)?
If it came to a vote and he didn't recuse himself I could understand the conflict.
I don't know how the ethics laws are written.
Not to mention the steam/pipe fitters, welders, electricians I work with... are all on the bench most of the time.
I don't know if it is just where I'm located (Mid Hudson Valley New York) but the guys I know are all hungry for work.... and there isn't that much work.