Looking at the series of civil suits against the Aryan nations, Tom Metzger and "WAR", I keep thinking that all it takes is for the cousin of one of the deceased to sign off on permission to file a lawsuit on their behalf and someone can go after some deep pocket Saudi sponsored mosques over this sort of thing

If you show up to court with a really diverse "mod squad" looking crew of civil attorneys, then you are going to be impossible to ignore as it grinds through court. Hit them with RICO and then as soon as a single Justice Department official steps out of line to derail the civil prosecution, start handing out additional lawsuits like party favors while howling about coverup.

Then of course will come the death threats against the law firm and legal staff, with strong allegations that those making the threats have numerous judicial and Justice Department contacts, highly placed state department people, and our team just keeps handing out legal filings, but up gun heavy handed security going to and from court, dudes rolling heavy and making a big show of it, lots of news interviews where people are put to the wall and frisked before talking to the principals, building and parking lot security, talk about how Jihadists have infiltrated the Justice Department and have ties to death threats against the legal staff.

Roll heavy, make it a militia deployment, let them bitch moan and complain about jurisdiction and change of venue, then the deployment follows them. They will probably push for a change of venue to get around the Washington DC area, and then there is the legal cover for going in heavy.

The legal blueprint is not hard to follow, it was used by the SPLC in the Metzger case, but we would modify it, although not as much as you would think. Tie in the Muslim prison chaplain to the major mosques, a few other converts who most likely influenced the head chopper guy, its not hard to see how the blueprint Morris Dees laid out works, the asshole still brags about it constantly.