You raise a great question. Here’s my take. The WU literally declared war on the US govt. They bombed govt. buildings etc. People were killed. The FBI treated it like a wartime situation in some cases. Like they were chasing Nazis in WW2. They might have taken some shortcuts with some wiretaps, because it was a “wartime” situation, more than a mere criminal case like bank robbery. Logical, right?
But lo, some liberal commie symp JUDGE threw it out, coming to the rescue of Ayers, due to the wiretap technicality.
With a perp that literally declared war on the US govt, and set bombs!