European Data Protection Supervisor: What a misnomer!
Given the way that Euro data is handed over to the USA and Israel, this guy has, IMO, failed miserably.
Neither the USA or Israel can be trusted, the US no longer even honours it's own Constitution so why would it honour anything else? (I hold a US passport and the word 'Constitution', along with the word 'flag', are repeated like a mantra in many levels of government and education;)
Canada, when it designed it's database structures, separated content so that someone with access to one database cannot go poking around another without authorisation. For instance, Plod can't go trolling through medical records or tax data.)
The UK's government database, on the other hand, was designed to centralise data and make much it accessible to people who haven't. or shouldn't, have access to many things as has been seen in the recent past.
And to all those Doubting Thomas', look back in history and see what Hitler did with German and French data - and that was all paper based.
Lexis-Nexis runs a database whose contents would amaze many, perhaps the word should be scare or concern, for an experienced researcher can gather up certain data and draw a pretty accurate picture. A while ago a character I was discussing a matter with suggested that the InterNet provided a lot of 'shielding'.
Within 10 minutes of research I had his name, address and employers name together with remuneration (I had access to Canadian credit bureau records at that time) and I was located ten of thousands of miles away from him.
So take a great deal of interest in your data, and ask why people want something, and make sure you let your elected officials know what concerns you, reminding them their number comes up every 3,4 or 5 years.
P.S. If you make any sort of claim against private paid medical insurance, and some countries public paid medical insurance, you should know that data is stored in a 'credit bureau' type structure and (life) insurers pay to access that data. So don't go 'forgetting' health details on insurance applications!