> How can you commit a crime under US law when you are not under US law at all?
What makes this complicated is that Huawei does have a registered company in the US (with multiple offices), and therefore at least some part of Huawei ought to be subject to US laws. By making the choice to establish a US presence they ought to be willing to comply to the local regulations.
> If I pass a law that bans eating cornflakes, you then have breakfast and enter my country, am I justified in putting you under trial?
Yes, though the problem is that this example is trivial. If I pass a law that bans cyber attacks on my country's infrastructure, and you perform attacks in a country where it is legal and travel to my country, I'm well in the grounds to arrest you.
If cornflake eating were against the law, the solution would be to avoid traveling to that country in the same way that some people might not travel to North Korea for fear of being arrested unfairly.
What makes this complicated is that Huawei does have a registered company in the US (with multiple offices), and therefore at least some part of Huawei ought to be subject to US laws. By making the choice to establish a US presence they ought to be willing to comply to the local regulations.
> If I pass a law that bans eating cornflakes, you then have breakfast and enter my country, am I justified in putting you under trial?
Yes, though the problem is that this example is trivial. If I pass a law that bans cyber attacks on my country's infrastructure, and you perform attacks in a country where it is legal and travel to my country, I'm well in the grounds to arrest you.
If cornflake eating were against the law, the solution would be to avoid traveling to that country in the same way that some people might not travel to North Korea for fear of being arrested unfairly.