When Steve was hosting a show on NPR this week, several callers questioned whether the United States should be sending 3,000 troops and $500 million to help control the outbreak of the Ebola virus in West Africa.It's true Washington is 4,669 miles from Monrovia, the capital of Liberia, where the epidemic is centered. It's also true the resources sent to Africa could be used here at home to improve the health of underserved Americans.Still, President Obama made the right call. If anything, his response to the crisis has been too slow.