Is there any evidence that PRISM wasn't just the program where they tapped the private fiber lines between Google's data centers and siphoned off the data? That

Is there any evidence that PRISM wasn't just the program where they tapped the private fiber lines between Google's data centers and siphoned off the data? That would fit in line with the code name (where they use a crystal to splice the light from the fiber line)... I can't see the hundreds of people it would take at google staying quiet for this long about being involved in giving the NSA direct access to servers. There would be at least one whistle blower on that side of things...