The frightening side of this is the alleged memo that outlines the scope of electronic searches.
I believe there are phrases such as "anti American" and any content that is called "counter to accepted American family values" and not favoring christian values, etc.
And authorising automated electronic trawling of phones, social media accounts and emails - over the past 5 years!
Remember also that Australian telcos are required to store all our internet activity. And we have intelligence sharing agreements with USA.
So glad that I have no intention to visit USA