Solar trade war: US vs China

SolarWorld is announcing a trade action against foreign solar manufacturers, alleging that “illegal activities” have caused “job cuts, losses in shipments and harm in operating margins.” (...) The two prominent American solar companies, First Solar and SunPower have not joined the coalition.
Some explanations from SolarWorld and some comments here, here and here. And the official responses of Suntech, Trina, Yingli, and Jinko Solar—and some not-so-official counterpoints.

PS1: The Italian PV Association is considering trade action too.

PS2: The president of SolarWorld Americas, Kevin Kilkelly, (...) will resign from his seat on the board of the Solar Energy Industries Association (SEIA), effective immediately. Kilkelly claims that the SEIA has been infiltrated by Chinese and other foreign companies, making it impossible for the SEIA to be an unbiased arbiter.