Title is misleading; it's not LED streetlights, it's the color temperature of LED streetlights. While the article raises a few good points, color temperature isn't new; it's not like LEDs have some inherent issue that impacts health.
Pretty much anything over 3000K looks horribly blue at night, and if it wasn't such a massive pain to find them I'd prefer <2000K.
Some of the newer "warm tone" CFL bulbs appears to do better better on these aspects. [0]: http://minerva.union.edu/newmanj/Physics100/Light%20Producti...
http://www.designingwithleds.com/the-new-cree-tw-series-led-...
Still 20x+ the cost of a normal bulb, and the tech probably won't work in 5 years, but it works well enough as a dumb bulb once the temperature is set that even when they inevitably go out of business or get acquired and shut down by Google, it should still be the temperature you want.
In any case, the original article's title mentions white LED streetlights -- so I guess making that clear in the title here might help.