Things are usually not all black and white, and worth further study before jumping into conclusions.
The travel ban of the seven Muslim majority countries is both cruel and ineffective, even though it might help me recruit students.
For top CS students whose countries are banned from USA, HKU has PhD openings for you. I am taking one from Sharif university right now. 😎
— Li-Yi Wei (@liyiwei) January 28, 2017
As reported in this NYT article written in 2015, the current H1-B visa system has plenty problems. Instead of a random lottery to address the over-demand (by mostly outsourcing firms), it is better to use a more market-driven system, e.g. giving higher priority to higher paid foreign workers.
In general, a skill-based immigration system, similar to what currently exists in Canada, can be better than the current family-based system in the US.
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