Someone makes a film in America and uploads it to the internet.
Protests against the film erupt in Egypt.
The American consulate is attacked in Libya and the US Ambassador and three others are killed.
Protests spread to Yemen and a few other countries.
At 06:12 a.m. this morning I am forwarded a text suggesting that there will be demonstrations in N'Djamena later today.
At 06:33 a.m. I am having a conversation about whether the children who live on the compound will go to the American-run school they attend today.
At 06:45 a.m. I leave for work - everything appears 'normal' as I drive across the city to the airport.
On arriving at the hangar I ask the staff if they have heard anything about possible problems today. They seem more concerned about demonstrations that have been talked about for several weeks in relation to a Government workers strike over a dispute about salaries.
The general feeling is that it could be 'un probleme pour les blancs' so I decide that we will close the office at 12:00 noon in order that everyone can get home before any possible demonstrations might take place.
Everyone seems very happy that we are finishing 2 hours earlier than we normally do on a Friday...
At 12:15 p.m. I drive back across the city. A colleague left an hour earlier saying he would phone if he thought there were any problems. As I haven't heard from him I take my usual route, which goes past the US Embassy. It is probably the most heavily fortified complex in the city, even more so than the Presidential Palace (if you don't include the armed soldiers). There are a few more security guards outside the Embassy but other than that everything still appears 'normal'.
I spend the afternoon working at home and get so much more done than I would have done at the office.
The neighbourhood is quiet as evening approaches. The ripples may not have reached N'Djamena but they still had an effect.