The Susan Rice bombshell at least explains why the Democrats won't stop babbling about Russia. They need a false flag to justify using national intelligence agencies to snoop on the Trump team.
Flashing is layered protection. So what is flashing? It's a thin layer of waterproof material that keeps water from getting into places it doesn't belong. (Caulk is fine for filling small gaps around windows and doors, but it shouldn't be confused with flashing.)
A flash is a sudden burst of light or of something shiny or bright. A sudden flash of lightning lit everything up for a second. The wire snapped at the wall plug with a blue flash and the light fused. A jay emerged from the juniper bush in a flash of blue feathers.