so they point a laser at a worm and it stops, turns away or craps out an egg - not exactly what I'd call mind control.
I can point a laser pointer at a human and they'll pretty much do the same thing (except the egg part) lol. Point one at a pilot and they can crash a plane, doesn't mean it was mind control over the pilot that caused the crash
All these "scientists" need to put their collective minds to good use and find a cure for cancer or AIDs, instead of screwing around wasting money on pointless crap.
C. Elegans, the worm in the article, has a really simple nervous system which consists of 302 nerve cells (and no "brain" as we know it), the location of each is mapped. Blue light is the highest wavelength, highest energy form of visible light, and when directed at neurons can cause them to fire without the need for surgery or chemicals (especially in an animal as tiny and translucent as a nematode).
These scientists have discovered how to elicit complex behavior (such as turning, stopping or *LAYING AN EGG*) by stimulating single command neurons or groups of neurons.
I actually conducted an experiment like this back at Uni on fly larva, so some blame for your misunderstanding lies with the abysmal quality of the article and *science for general consumption* as a whole, but seriously you took it like 3 steps beyond simple misunderstanding.