There was an article about this linked in a GA thread here earlier... No Charges for Comey in Leak Probe From the article: "Although a technical violation, DOJ did not want to “make its first case against the Russia investigators with such thin margins and look petty and vindictive,” a source told me, explaining the DOJ’s rationale. But Comey and others inside the FBI and the DOJ during his tenure still face legal jeopardy in ongoing probes by the IG and Barr-appointed special prosecutor John Durham. Those investigations are focused on the origins of the Russia investigation that included a Foreign Intelligence Surveillance Act (FISA) warrant targeting the Trump campaign at the end of the 2016 election, the source said. “There are significant issues emerging with how the FISA was handled and other conduct in the investigation, and everyone involved remains under scrutiny,” a second source said." Read closely into that.  He's too big a fish to start out with.  "Still face legal jeopardy." "Ongoing probes." "Everyone involved remains under scrutiny." Pay close attention to detail. Optics matter as well.