For years, now that LEDs already don't contains any lead.
The US talks too much about energy and environment saving, but do more damage then benefits (Ie. ALTOs: less mercury on lamps, very much more mercury from power plants).
I think that this article is possibly false and misleading: LEDs that contains lead, aren't in production anymore, and arsenic never ever used in LEDs at any time.
This article even isn't based on correct researches, or is based on false researches.
Literally, this article is a one big lie!!!!!