Fusion Power - The Physics Holy Grail?

OK, so I've been looking up theories and options for new power sources with the global oil crisis and such. One which has really struck me is Fusion Power. Given that my country (UK) is now building a shit-ton more of the more dangerous Nuclear Fission power stations I'm wondering why people haven't invested more in this Fusion idea sooner.

So hit me with it, pros and cons, and whether you think it's attainable by the end of this century.

MOON, do you know that thing?

But NASA fails bigtime nowadays.

Just install some freaking huge efficient panels on the moon and get those rawmaterials to the earth.

JUST FUCKING DO IT.

THINK LONGTERM.