I suppose after Paul's conversion he should have just hung out in Damascus for the rest of his life with this way of thinking.
People are called to minister in different places and in different areas. It would be like criticizing someone who ministers to older people suggesting that they should minister to young people instead because they will have a longer time to impact the world around them.
There are a lot of things that Ann Coulter has said over the years that I agree with but this was just silly and demonstrates a lack of understanding of Christ's message and commission.
By the way, I 100% agree we need to encourage people to look at their own backyard as a mission field. But with that being said, there is nothing wrong with those that choose to go to Africa and serve there or in some other place.
The problem isn't missionaries who leave this country and go overseas. The problem is those of us that are still here. What are we doing? Are we living insulated lives in our churches or do we truly reach out to our community? If anyone should be criticized it should be many of us. Not the Ebola doctor.