Several Hundred MORE Architects and Engineers for 9/11 Truth?

I took a look at the "A's" list of Architects and Engineers who signed the petition asking for a new investigation of 9/11. Of the 137 signers, it looked as if one or two of them might not belong in the list. So then I decided to look at the "A's" list of the General Public who had signed the petition, and it looked as if more than 50 of them should be in the Architects and Engineers list. I'm curious why they aren't included. Perhaps the vetting process wasn't able to verify that they were architects or engineers. Or perhaps the Cass Sunstein method of infiltration includes infiltration of 9/11 Truth groups. It would be interesting to know which is the real reason. Meanwhile, if it turns out the 50+ people I found in the A's list are really architects and engineers, then I estimate that there are another 700 or so architects and engineers for 9/11 Truth, besides the 2,000 who have already been counted.