ELI5: Explain Like I'm 5

Lockdown

Okay, kiddo! So, a lockdown is a way to keep everyone safe by making sure that no one goes in or out of a certain place. This is usually done when there is a danger nearby, like a bad guy or a dangerous animal. During a lockdown, everyone has to stay put and be very quiet. That means no running, playing or talking loudly. It’s important that we follow these rules so that we can be safe and the danger can be kept away!
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