Which is why
When travelling to the USA, you take no digital items. Easy enough to buy a phone and SIM in the USA and likely will be cheaper to use whilst you are there.
As for your laptop, up to you - you could create a ghost image, upload the image somewhere secure, and then securely wipe your laptop and leave only a clean install. This won't stop them installing hardware based bugging, or some of the more extreme variants of malware that can survive a full wipe - but they won't get anything about you from the device.
Then wipe it as best you can, before putting the ghost image back on - rinse and repeat on the way hom (just in case)
Biting the hand that feeds IT
