"Where's Waldo" is a simple concept that most people can understand and have an opinion about. A country spying on its own citizens is an important thing to dea

"Where's Waldo" is a simple concept that most people can understand and have an opinion about. A country spying on its own citizens is an important thing to deal with, but sufficiently complex that most people would rather just ignore it. I would imagine that if even a tiny fraction of the people hearing about Snowden then go in to investigate the spying, then that's more attention than the spying would get by itself.