In his new book, The End of Food, journalist Paul Roberts writes that the world has reached the end of the age of food abundance, and is entering an age of scarcity. He takes on the food industry, government subsidies, food aid, organic farming, meat consumption and processed food, and says if we don't choose to re-think the entire structure of the global food economy, events will force us to.

How precarious is the global food supply? Must we re-think our diet? In his Q&A with CBCnews.ca, he says that from viruses in the chickens to bacteria in the spinach, from industrial farms to organic ones co-opted by industry, from the radical disruptions of a changing climate to depleting and polluted water, the message to meat-eaters, vegetarians and vegans alike is that the global food system is one major disruption away from calamity.

If you have comments or questions for Paul Roberts, please post them here.

By Peter Nowak, CBCnews.ca

OTTAWA - After an inauspicious start to the day, the net neutrality rally turned out to be a success in the eyes of organizers and protestors. About 300 showed up (only about 30 were employees of rally organizer Teksavvy) despite some organizational problems, which included the event being rescheduled three times.

By Peter Nowak, CBCnews.ca

OTTAWA -- The crowd of about 300 at today's rally on Parliament Hill in support of "net neutrality" was well behaved, but placards clearly indicated their feelings on the issue.

By Peter Nowak, CBCnews.ca

OTTAWA -- Today's rally in support of "net neutrality" drew a crowd of about 300 to Parliament Hill to hear speeches from supporters and politicians.

By Peter Nowak, CBCnews.ca

ON THE BUS TO OTTAWA: Today's rally in support of "net neutrality" hasn't exactly started spectacularly - or the Toronto leg of it, anyway. There are only 15 people on the bus, which left Yorkdale Mall at 4:30 a.m.

By Peter Nowak, CBCnews.ca

A number of news stories have popped up over recent weeks telling of how bands are making good money off selling songs through the Rock Band and Guitar Hero video games. To the uninitiated, here's how those games work: players use plastic instruments to play along with songs on screen. To keep the games fresh and players interested, their makers have been offering up new songs for paid download on a continuing basis.

Associated Press

Microsoft Corp. chief executive officer Steve Ballmer scrambled for cover from an egg-hurling protester during a talk at a Hungarian university.

Associated Press

DNA testing has shown an attack on a family van that some blamed on the legendary Lizard Man appears to have been actually done by a domestic dog.

By Peter Nowak, CBCNews.ca

In keeping with our most recent blog post - regarding how some politicians seem like deer in the headlights of new technology - comes another doozy. This time it's one of our own, Senator Marjory LeBreton, who is caught saying something most in tech-land would deem rather foolish.

By Peter Nowak, CBCNews.ca

U.S. Senator Ted Stevens took a lot of heat almost two years ago when he infamously referred to the internet as "a series of tubes" when trying to put the whole net neutrality debate into some sort of perspective. In fact, the statement even has its own Wikipedia entry, not to mention a website devoted to ridiculing the Republican senator from Alaska. The thing is, Stevens was right all along!

by Paul Jay, CBCNews.ca

It sounds like a Marvel Comics mash-up: mix one part Spider-Man and one part Iron Man, shrink to the size of Ant Man, and what do you get? Tiny robot spiders and insects.

According to reports in the Telegraph and Daily Mail in the UK, British military contractor BAE Systems is developing robots that look like crawling and flying critters for use on battlefields, where they can act as scouts, relaying visual; and other sensory information to soldiers.

Have you played the new Grand Theft Auto IV video game? Some are saying GTA IV will be a record-breaker in terms of sales - CBCnews.ca's Your Voice section wants to hear your thoughts about the game itself. Click here to post your personal review.