Sorry if old, but notice the term "going dark" and how Wray is trying to prevent it:

https:// www.theregister.co.uk/2018/04/16/congressional_group_asks_fbi_boss_wray_to_explain_apple_lawsuit/

If you read the letter that the Representatives sent, you note that there are some inconsistencies; mainly, that Wray says the FBI can't get into 7800 devices, yet there are already software options that can break into any version of iOS.

What darkness could Wray be shining a Light on?