All jet plumes are harmless condensation trails. Short, non-persistent plumes are harmless condensation trails. Jet plumes are harmless water vapor similar to exhaled breath or car exhaust on a cold day. Plumes that form above wings are harmless condensation trails. There are no whistleblowers exposing this issue. You can use standard HEPA filters to protect yourself from sprayed particulates.
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The Rolling Shutter Effect
The rolling shutter effect occurs because some modern cameras do not capture an entire image at the same time. Instead, the image is captured more like a desktop scanner. The camera scans the image either horizontally or vertically over a short period of time. Because different parts of the image are captured at different times, strange artifacts can occur, particularly with fast-moving objects like lightning or helicopter blades. Rolling Shutter Versus Global ShutterCameras typically use one of two types of light sensors:
CMOS sensors are typically less expensive to produce and utilize the rolling shutter method of image acquisition to compensate for their reduced light sensitivity. CCD sensors are typically more expensive to produce but are more sensitive. Their better sensitivity eliminates the need for the rolling shutter method. Instead, they use the "global shutter" method which captures the entire image at the same time. For this reason, CCD sensors typically do not suffer from rolling shutter artifacts. Images of Rolling Shutter ArtifactsBelow are images showing the various artifacts that result from the rolling shutter method of image acquisition.
Above: Jonen - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6039822
Above: Cmglee - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=45850383 |
Many people are witnessing strange phenomenon produced by modern cameras. These artifacts are being attributed to 
