[mordant]

. . . so, you either leave your laptop at home (assuming you've a sufficient degree of certainty it won't be hacked there) or you keep it with you at all times, with all wireless technologies disabled.

With regards to my checked luggage - no electronics there - when traveling to/from/in the US, I always save those 'Inspected by TSA' placards, and place one prominently atop my clothes prior to closing and locking my bag.

Based on various physical telltales I utilize, the success rate of placing a used 'Inspected by TSA' placard in one's bag to deter searches is 100%, at least in my experience.

Since I started doing this, I haven't received any new 'Inspected by TSA' placards, either. So, that's another indicator of the technique's probable success rate.