As they say .
According to their 07-08 annual report the NPG had an annual revenue of 16.6M pounds, liquid assets of 7.5M pounds, and total assets of 69M pounds.
Relevant bits start around page 40.
"Hacked" is rather misleading.
The NPG made high res images viewable online as a series of tiles, i.e. you might deliver the full image as twenty smaller images each showing a portion of the total.
His "hack" was to download each of these tiles individually and reassemble them into a coherent whole.
Nothing was done to gain unauthorize access or compromise their systems in any way.
No, no, no.
Berne requires that the US protect foreign copyright holders if and only if equivalent works published in the US by US citizens would be protected.
If a work is intrinsically ineligible for copyright in the US then the US does not and will not honor any foreign laws that say otherwise.
In 1750 Issac Newton became discouraged when he fell up a flight of stairs.