Definitely. All you have to do is look at American military intelligence's insistence on using SCIFs for viewing and working with sensitive electronic (and phys

Definitely. All you have to do is look at American military intelligence's insistence on using SCIFs for viewing and working with sensitive electronic (and physical, but for more boring reasons) documentation. https://en.wikipedia.org/wiki/Sensitive_compartmented_information_facility https://en.wikipedia.org/wiki/Sensitive_compartmented_inform... They know it's important to limit what kind of emissions make it from your equipment to the outside world because they've successfully used exactly these techniques in the past to extract information from others.