GUWonder

There are ways to delete data on devices and utilize those devices such that it makes it very difficult to impossible for the government to recover deleted data. But there is something to be said about "less is more" when it comes to what you carry across borders or how you use "smartphones", a super-surveillance tool if ever there were one before. If the device or software makers are compromised even before getting the product out of the factory or distributed, it's game over whenever the government thinks it important enough to pursue the matter and risk getting its sources/methods exposed or to recreate an investigative trail (i.e., make up a story/excuse on how the target became a target/suspect) and risk that being exposed.