is widom-larsen the only theory that propose similar screening, or is it a key predictive event?
I haven't seen another LENR theory that explains it. WL do have a patent (US 7,893,414 B2 : Feb 2011) on the heavy-electron gamma screening:
http://newenergytimes.com/v2/sr/WL/docs/US7893414B2.pdf
so if the eCat relies on that, there might be yet another patent battle.
