Old CIA documents on weather modification are being recirculated to support claims that aircraft are spraying chemicals into the sky — claims mainstream science rejects, but which are gaining political attention.

• Declassified files from 2003 describe Cold War-era US interest in manipulating weather and storm systems.
• Dane Wigington of geoengineeringwatch.org says rain samples contain aluminum, barium, strontium and graphene, and links them to "climate engineering" patents.
• The claim is that these chemicals trigger freak events like flash-freeze snowstorms in the South while the Arctic sees rain.
• No mainstream scientific body supports the idea that contrails are chemical spraying; the cited documents discuss research proposals, not an active program.
• The angle that makes this news is political: some members of Congress have started raising geoengineering as an issue.

Outlook: Expect more state and federal bills restricting weather modification, even as scientists continue to dismiss the underlying spraying claims.