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A phone starts sending a help signal

Find nearby victims and open contact
Built to help teams notice nearby help signals, roughly follow the signal, and start talking to the victim.
A phone starts sending a help signal
Nearby teams can see that signal
Signal strength gives a rough idea of direction
Then secure messaging can open
See nearby help signals. Real range depends on the place and the phone.
Signal strength helps teams choose where to move next.
Authorized teams can open direct contact with the victim.