Ah ah ah monero private, realy ?
Do you know the viewkey ;-)
Viewkey = view all transactions.

http://coinfestestonia.org/wp-content/uploads/2015/02/The-Monero-Presentation.odp

A view key is used to reveal all transactions for a Monero account, or just the key for a single transaction

NSA likes Monero

https://en.wikipedia.org/wiki/CryptoNote#NSA_involvement