For a man unknown to most of America a month ago, Dr. Ben Carson is suddenly everywhere.
The Johns Hopkins pediatric neurosurgeon is now a viral phenomenon, with a half-hour National Prayer Breakfast speech that has found its way to millions of inboxes.
That address, covering topics from personal responsibility to education to taxes to health care, landed him on a smattering of political shows in the days following, as questions sprang forth:
Why did he address such specifics with President Obama seated two chairs away?
Does he envision running...