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 blinking yellow light indicates hard drive activity on some computers. The yellow light may blink in split-second intervals when the hard drive is in use, while prolonged blinking means that the computer is constantly requesting information stored on the hard drive.