The sources available to historians jump exponentially for the post-1945 era. The rise of typewriters, copy machines, computers, and printers created a blizzard of paper that shows no sign of ending. Add into that all the electronic files, email, and the like, not to mention oral history recordings, and historians studying the years after World War II might be forgiven for having a thousand-yard stare and powerful bifocals. Google (which I am using as a generic word for search & indexing of all type. There goes the trademark) has helped some, but has its own problems.
Now comes the flood of video. The Air Force, the linked article notes, collects 6 petabytes (which is technical language for “Holy sh#$%$#%, that’s a lot of data”) of high-definition video per day. Such video could be remarkably useful for military historians (want to watch a combat engagement in real time?) but wading through it will be the work of generations.