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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.