I am on page 175
of the testimony.
I had to look up the prevezon case, which covers a lot of the testimony in the beginning. This story gives some history as to the players in that case and how they cross over into the Trump tower meeting.
https://www.washingtonpost.com/news/josh-rogin/wp/2017/07/11/inside-the-link-between-the-russian-lawyer-who-met-donald-trump-jr-and-the-trump-dossier/?utm_term=.9b5e4a144812
Republicans are using this to say Fusion paid the Russian lawyers to compromise Trump on the DNC's behalf.
Steele's motivation for going to the FBI was his concern that a presidential candidate was being blackmailed by the kremlin. He is an expert in intelligence and felt an obligation to turn the info over.
Glenn Simpson became concerned and in total agreement once the Emails started being released. In his mind a crime was being committed.
= new reply since forum marked as read
went to the FBI because they are patients (Simpson) and they are US allies ( Steele). The same is true with Australian Intell who spoke with Papadopulos and learned info about Russia and The Moron's campaign. The went to the US Intell to give them a heads up as well. Foreign allies are helping us and have been since our own country can't be trusted by anyone anymore.
The scientific communities around the world will be sharing their Climate Change research with us since we no longer have that issue. The Moron said it doesn't exist, therefore it must be true. 
Thank goodness for our allies.
