A. Is it important that the US always lead in these areas?
I think it is important in the short-term, because many of the key technologies in the short term run cannot be exceed , but for the long term, it may not very important, because it requires a lot of manpower and financial support. If another country invested a lot of money and time in some areas, maybe couple years later, they lead in these areas.
B. How can diversity in the workforce help any country advance?
I think the workforce diversity can help any country advance, because work diversity includes many aspects, such as age, gender, nationality etc. For the age diversity, the country's workers can not only the young person, and also can't only old person, because old worker have more work experience, they can help young people grow up fast, but old worker always have fixed mind-sets, so the young people can bring the spirit of innovation, they complement each other and learn from each other, they can improve together. For the gender diversity, some work is more suitable for women, and some work is more suitable for the man. For example nurse is more suitable for women, because women are generally more careful than men, and auto repair workshop generally all the worker are the man. So the gender diversity in the workforce are good for the country. For nationality in the workforce that right now more and more multinational companies hire their workers who come from different country, especially in the local place the multinational companies want to hire local employees that for convenient management.
C. Has the US made good use of its social capital in the past? Why or why not?
I think US made good use of its social capital in the past, because America is an immigration country, and the US constantly