Just say no
Since they reserve the right to confiscate, without due process, ANY electronic equipment (it's not just laptops but anything that might contain electronic data, from laptops to flash drives to cameras), I suggest just saying NO.
Say NO to that next visit to the USA. Go someplace where the term "innocent until proven guilty in a court" means something. Go someplace where you don't run the risk of being "renditioned" to a 3rd party country for torture and indefinite incarceration.
There is nothing in the USA that isn't available elsewhere in either better quality or better price or just simply "better". And if it's your work paying for and demanding that you put up with the risk, get it in writing that they'll continue paying you if you get renditioned to Syria or Algeria, and that you won't be held personally responsible if and when the US border bandits take your laptop, iPod and Nikon away. Permanently.