Defending Scanners & Pat Downs
John Pistole, head of the Transportation Security Administration, says the inconvenience of body scanners and pat downs is a small price to pay for safety.
The debate over expanded screening touches on the proper balance between safety and civil liberties. Some legal experts wonder whether the TSA violates the Fourth Amendment protection against unreasonable search and seizure. Mr. Pistole is bracing for a grilling on Capitol Hill and likely legal challenges. But some critics, such as the former head of American Airlines Robert Crandall, question the TSA's methods from a security point of view. The agency treats each and every passenger as an equal terrorist threat. As a result, the vast majority of resources are devoted to where little threat exists.
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Upload your mind? Here's a reality check on the Singularity.
- Though computer engineers claim to know what human consciousness is, many neuroscientists say that we're nowhere close to understanding what it is, or its source.
- Scientists are currently trying to upload human minds to silicon chips, or re-create consciousness with algorithms, but this may be hubristic because we still know so little about what it means to be human.
- Is transhumanism a journey forward or an escape from reality?
The Harvard psychologist loves reading authors' rules for writing. Here are his own.
- Steven Pinker is many things: linguist, psychologist, optimist, Harvard professor, and author.
- When it comes to writing, he's a student and a teacher.
- Here's are his 13 rules for writing better, more simply, and more clearly.
A completely unexpected discovery beneath the ice.
- Scientists find remains of a tardigrade and crustaceans in a deep, frozen Antarctic lake.
- The creatures' origin is unknown, and further study is ongoing.
- Biology speaks up about Antarctica's history.
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