@evacide @masek This is part of the cost of travel. You could have a semi-burn phone that travels with you, is factory reset at every border crossing or airport pass-through, and is discarded if siezed and returned. If you travel between two places regularly, make arrangements to keep phones that do NOT travel in both places.
If you cannot afford to protect the people you communicate with, you cannot afford to fly or travel internationally. For domestic travel, consider driving, Greyhound, Amtrak(at the moment), or anything else that never "inspects" electronics and rarely inspects baggage at all. Be alert to any changes, and cancel if you see the station infested with cops.
Yes, CPB and ICE have been known to board busses but I've never heard of them demanding everyone produce their phones for inspection. if THAT starts up, it's driving, biking, hiking, or (for some folks) hitching or hopping trains (yes, that is still done by experts). Or just staying within your local range.