A video of a middle-aged woman crawling a few meters behind President Uhuru Kenyatta during a televised interview with journalists on Friday has gone viral online, with social media users wondering why she opted to make that howler.
Blinding a surveillance camera can obscure your identity, but not your presence. A person watching through the camera will be able to tell that you’re there, but they won’t be able to see what you’re doing. You can blind a camera in the dark using a LED, an infrared laser day or night, or how to cover up the lens of the camera.
Method 1.Using LEDs
1.Shine a powerful LED (light-emitting diode) directly into the camera lens. 
The brighter the flashlight, the better. Use a small device that you can easily store. This method only works well in the dark, so save it for stealthy excursions at night or in enclosed spaces.
2.Block your face with the light
Figure out exactly where the camera is, and shine the light directly into the lens. When properly executed, this technique should create a lens flare that makes it nearly impossible to tell what you look like. Be warned that the flashlight method is not subtle. The sudden flash of will alert any vigilant guard to your presence. However, you should at least be able to use the bright light to obscure your face.
3.Hold steady.
Be careful not to drop the light beam from the camera lens, lest you reveal your face. Make sure not to shine the light onto your face. Remember: this method only works if you are quick and precise.
4.Attach infrared LEDs to your clothing.
For a quick fix, superglue a string of bright lights to a hat or headband. If you wish to get more involved, you can craft an LED “mask” that even more heavily obscures your face. Make sure that the lights are bright enough to blot out your face from the camera’s view, but not so bright that they blind you!