Also all the source code (for all systems) is visible to all googlers.
This kind of conspiracy theory is really boring.
"NSA taps into Google, Yahoo clouds, can collect data 'at will,' says Post"
https://www.cnet.com/tech/tech-industry/nsa-taps-into-google...
"National Security Letters"
https://www.eff.org/issues/national-security-letters
There is a reason behind the usual in court phrase of "..tell the truth, the whole truth, and nothing but the truth...". So, if a third party would get copies of the data, it would be true Google deleted it...It just not be "the whole truth".
Also all the source code (for all systems) is visible to all googlers.
This kind of conspiracy theory is really boring.