This American slang term means that it is often the small details of something which make it difficult or most challenging. These details can prolong a task, or foil an otherwise straightforward deals. Like many proverbs which involve the devil, it is meant to sound a note of caution.

This reminder is intended to encourage the scientists to check their work, and to be thorough and careful. Warning: Does a nuclear deal with Iran signify a prelude to war?

Who Got What They Wanted in the Iran Nuclear Deal

BBC News - Newspaper headlines: Iran nuclear deal and 'Pluto on Pluto'

In Iran deal, Obama sees validation for diplomatic gamble:

How the Pentagon got its way in Iran deal

President Obama will hold a White House press conference later this morning. Stay tuned for live coverage.


Payback is a Bitch

Vince Vance & The Valiants (bomb iran)