FBI illegally shared surveillance data on Americans with unauthorized third parties and federal contractors

As a legal matter, this seems straightforward. The FBI’s gotten too loose with sharing Americans’ data in violation of its own “minimization” rules and you’d better believe Jim Comey will be asked about it the next time he testifies before Congress. If he testifies before Congress.
As a political matter, it’s more complicated. Why did agents access the info and, in some cases, share it with people who weren’t supposed to see it? Were they spying on Ameri