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Today, I want to introduce you to three different smartphone applications that can encrypt your phone calls. For the sake of your privacy and security, I recommend using them — no matter where you live.

Wondering what you can do after the violence in Charlottesville? Here’s your action to take. Plus, mudslides in Sierra Leone, hidden threats to your emergency storage and a gun-toting drone that can fire in midair.

This edition of the Weekly Drop covers how to spot and lose a tail, how to acquire a gun suppressor and the best self-defense techniques for the elderly. Take a look.

Wi-Fi is great. It’s convenient, allows for widespread coverage, increases the portability of devices and is cost-effective. But wireless networks — especially in your home — are also a common target for hackers trying to steal your personal information. To protect your wireless network from unauthorized access, simply follow these three steps.