From the New Republic:

Let’s not beat around the bush here: The authorities in New York clearly lied in their press conference last night about Craig Spencer, the New York physician who contracted Ebola while volunteering for Doctors Without Borders in Guinea.

Noam Scheiber is okay with the lying because it served a higher purpose.  The problem is that if officials constantly lie, even for our good, eventually they will no longer be believed at all.  The damage is incremental, but accumulates until there is no faith left.