I know the world court says that it is illegal to target heads of state, but it has been said that Ronald Reagan told the Chinese leadership that we had the technology to know where every one of them was at any given time, and in case of conflict that they would be the first, and possibly the only ones targeted. China stayed relatively docile while Reagan was President. Then when pussified democrats got power, China started flexing their muscle again. They have not stopped yet, except that Trump is making them rethink their future actions. Interesting times, eh?
Screw the world court, develope it in secret and deploy it in secret