What Are China's Export Control Measures?

In Maryland, you have to take a lot of continuing education courses in order to be certified as a CPA. So one year we went to New Orleans, so she could take a class. We did a different levees, different plantations, went out to Cajun country and ate shamelessly. That is music to my ears. Well, let's talk about some other music. China chip controls. This was kind of big in the news last week, wasn't it? What are these export controls actually do? It's an important policy shift.