Finally, One US Corp Takes the High Ethical Road and Clearly Discloses a Main Problem With the Accuracy of the Trump Tax Cuts Act Impact on Their Financial Statements ....................................................................................... Who Is It? US Defense Contractor Northrop Grumman

Here's an excerpt from Northrop Grumman's Income Tax Footnote included in its 2017 Annual Report filing with the US SEC:

"The income tax effects for these positions require further analysis due to the volume of data required to complete the calculations; the company expects to complete those analyses in the second half of 2018."

Who's its CPA Firm also taking the High Ethical Road here? 
  

The McLean, VA office of Deloitte & Touche LLP