Completely wiping all computing devices in advance every time you pass through a border checkpoint seems like the only defense against the government getting al

Completely wiping all computing devices in advance every time you pass through a border checkpoint seems like the only defense against the government getting all of your personal data. As we can see from the Tunic case, providing a "duress password" to cause data to be wiped on site when entered leaves you vulnerable to destruction of evidence charges, even if Tunic ultimately prevails. What computing device vendors specialize in bulletproof, convenient wiping and restoration?