What is the Dandelion privacy protocol?

Privacy has been one of the biggest hallmarks of the Cryptocurrency transactions on their blockchains. Ironically though, it has also been one of the most controversial features when it comes to monitoring of such transactions by the regulatory authorities. The global financial regulators have been critical of the point that some of the privacy-centric coins (Monero, Zcash etc.) can give the Con men of the digital world the opportunity to launder money & use it for other black market activities. For a common man though, the privacy of these transactions is one of the most enticing features since it keeps their…...