Only 11% of rental units allow big dogs.

But what exactly is a big dog?

The answer could mean the difference between life and death.

Control F is a new podcast about the data that companies and the government use to shape our daily lives.

Listen to Control F from KOWW in Seattle, a member of the NPR network.

You're listening to Shortwave from NPR.

Amanda Meng was on vacation the day before New Year's Eve when the messages began.

I got a signal message. There had been some on-the-ground reports of network interference,

and of course they wanted to know what we could see in our measurements.

Amanda is a part of a research project called Iota, or Internet Outage Detection Analysis.

Her research partners were telling her that something weird might be happening with the Internet in Iran.

And it actually took several days before we could see something abnormal in the data.

And then on January 8th, we all started to see our measurements just kind of start to fall off.

So a near a complete shutdown where Iranians were no longer connected to the global internet.

This is not the first time the Iranian regime has shut down the internet.

The regime during times of mobilization will shut down the internet to try and suppress that mobilization

as well as to control information. Also creating that chaos of not being able to connect

with people, connect to emergency services, might drive people back home out of the streets.

And of course the government has said it's shutting down the internet for national security.

Yes, right. They always offer some sort of reason or motivation, and it often has to do

with national security. The current internet shutdown came as a response to protests across Iran,

with crowds calling for political change amid rising inflation and a devastating drop in the value of Iranian currency, the Rial.

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