THIS IS AN INTERESTING (ALBEIT FRIGHTENING) SEQUENCE OF EVENTS

Consider this sequence of events over the last two years:
1) IRS Hits Estate of Former Detroit Pistons Owner With $2 Billion Tax Bill (Aug. 15, 2013);
2) Estate of Former Detroit Pistons Owner Settles $2.8 Billion Gift, Estate & GST Deficiency Claim For 11 Cents On The Dollar (July 8, 2015);
3) Estate of Former Detroit Pistons Owner Sues Deloitte For $500 Million For Botching Tax Plan (Sept. 25, 2015).
Each of those headlines is frightening to me in its own way, and should get the attention of any tax professional.  
#2 doesn’t sound that frightening to you, you say?  Well, look at it this way: a settlement for eleven cents on the dollar meant that the amount actually paid to the IRS was $320 million.  
The headlines are taken from posts on the TaxProf Blog, which in turn link to news accounts on the events.