MI5 admitted that rogue officers carried out searches about 20 prominent people with no apparent justification from their duties. The 20 people have not been informed that they were targeted, and we don't know who they were.

I am more worried about the thousands of searches that the officers do for reasons that are officially approved.

MI5 systematically resists legally mandated independent oversight of its bulk data collection.

US agencies have developed their own ways to make a monkey out of laws that are supposed to limit what they do.