Trump's new executive order reflects a fear of sabotage, where an enemy such as China or Russia could turn off critical infrastructure like the internet or communications capability.
Countries may be forced to choose whether they side with the US or China when it comes to Huawei.
Politicians have been leaking secrets to journalists as long as newspapers have existed. But it's getting more difficult thanks to surveillance technology.
Cutting Huawei out of the picture would limit Western access to new, state-of-the art technology.
Nuances and complexities will characterise Australia's relationship with China for the foreseeable future.
The standoff over Australian coal imports through Dalian sends a powerful political message: that Beijing can turn imports off and on at will.
Another case involving an even more egregious violation of international law by China against Canada languishes largely forgotten.
Huseyin Celil, a Canadian citizen, has been in jail since 2006.
Telecommunications company Huawei has used artificial intelligence to complete Schubert's Unfinished Symphony. But the result fails to capture the spirit of Schubert's original compositions.
The unexplained detention of author and diplomat Yang Hengjun has raised more questions about the motives of a Chinese government under stress from within and without.
In the absence of trust, greater cultural understanding is a powerful diplomatic tool and one that Canada needs to wield expertly when dealing with China.
Monopolies are bad for innovation and dismantling them would help the US economy compete.
Ren Zhengfei has given a rare interview to the Western media, denouncing accusations that his company has been involved in spying.
Some will point to Apple's lost talisman as the reason for the company's current woes. They needn't bother.
Intelligence officials in many countries are concerned the company could be helping the Chinese government spy on companies, military units and government agencies.
Meng Wanzhou's arrest in Canada has caused further tensions in the strained relationship between China and the US.
As a resource-driven economy, Australia is not used to being at the pointy end of supply chains – and it feels as though we are managing risks and benefits of critical infrastructure on the fly.
5G is similar to existing mobile networks, but with key differences in hardware and software. And we still need to work out who will build this infrastructure in Australia.
Silicon Valley's chip supplier de choix scored a massive own goal with smartphones. If it has got driverless cars wrong too, it could be goodnight Santa Clara.
The Huawei case shows there is a real trade-off between economic and security imperatives for Australia when it comes to working with Chinese tech companies.
The Australia-China relationship involves walls and whispers, as well as all the rhetoric about trust and respect.