We have lost a dear friend and valued colleague: Bill Zalud, who passed away last month in Chicago.

For three decades, Bill Zalud served as a leader and reporter in the security industry, serving as Editor for both Security magazine and SDM Magazine throughout his tenure.

I used to write stories like this on a typewriter back in the day. My articles turned out to be a mass of White-Outs to counter typing mistakes. It all made me dizzy. Today’s computer technology even auto-corrects my words, which sometimes is not a good thing.

NASA and the U.S. Department of Homeland Security are collaborating on a first-of-its-kind portable radar device to detect the heartbeats and breathing patterns of victims trapped in large piles of rubble resulting from a disaster.

In a New York Times/CBS NewsPoll, a week after the Boston Marathon attack, which was unraveled after the release of video footage of the two suspects flushed them out of hiding, 78 percent of people said surveillance cameras were a good idea.

Back in time, I was getting a personal tour of historic computers in the Smithsonian by none other than the famous computer scientist Captain Grace Murray Hopper, who is said to have coined the term “computer bug.” 

David Michaels teams up with OSHA to create a multifaceted whistleblower program -- how can stamping out workers' fears of discrimination or retaliation improve your investigations?