Senegal's capital of Dakar remains jittery, with the youth and the riot police locked in running street battles.
The police are using teargas, rubber bullets and water cannon spray to chase away angry opposition demonstrators, including rappers from the Y'en a Marre movement. Their name means "We're Fed Up, Enough is Enough."
This past week, a planned overnight sleep-in protest was broken up by the security forces. Founding member and rapper, Djily Baghdad, blames Abdoulaye Wade for the ban, the crackdown and for overstaying his welcome as president of Senegal.
Not known as a hotbed of experimentation, the world of publishing has been slow to embrace the transition from print to e-books. This past week in New York, however, the Tools of Change digital publishing conference attracted entrepreneurs and innovators who are more excited by, rather than afraid of, the future.
It was the kind of crowd where some were more inclined to say "Steal my book!" than to argue over what that e-book should cost. These are people who see digital publishing not as a threat, but as an opportunity.
Do-it-yourselfers have made everything from bamboo bicycles to 3-D printers, but nothing as ambitious as what's happening on a farm in northwest Missouri where tractors and other industrial machines are being made from scratch.
Marcin Jakubowski earned a Ph.D. in physics, and his doctoral thesis deals with velocity turbulence and zonal flow detection, whatever that is. But when Jakubowski graduated in 2004, he wanted nothing to do with physics or academia.
It was one of the more surreal photo ops this week: Iran's president Mahmoud Ahmadinejad, live on Iranian TV, visiting a nuclear reactor. Ahmadinejad trumpeted his country's nuclear progress, but denied, once again, that Iran is pursuing nuclear weapons.
In Washington, officials weren't buying it.
They rushed to repeat the official U.S. line — a line President Obama himself is fond of delivering.
"Let there be no doubt: America is determined to prevent Iran from getting a nuclear weapon, and I will take no options off the table to achieve that goal," he said.