not so crypto

Those Bitcoins others use for buying drugs,
big Russians use to launder ill-got gains
discretely snapping up fine Persian rugs
and grands chateaux in Malta, France, and Spain.
Corruption undermines the Kremlin walls
as wealth's ingathered to the few on top
But markets don't announce their climbs and falls,
or when the BitCoin bubble's gonna pop.
It's funding terror triggered NSA
surveillance, 'though your purpose may not match,
if cryptocurrency's the way you pay
expect your records all to be bycatch.
Extraordinary tools, meant for IS
will sweep up all your data, more or less.