deletions | additions       diff --git a/untitled.tex b/untitled.tex  index ffd09a2..1c0043a 100644  --- a/untitled.tex  +++ b/untitled.tex 
...
\section{Introduction}  The Automated Alignment System (AAS) and Back End Active Stabilization of Shear and Tilt (BEASST) together serve to align the beam trains in the MROI and to keep these aligned during the night. A design for the AAS went through a Conceptual Design Review (CDR) andsince then  some subsystems have been prototyped. We propose here a modification to the AAS concept which will allow the existing goals to be met while addressing drifts in alignment during the night more rapidly and robustly. At the same time, some of the constraints on the BEASST system can be relaxed, allowing a higher-performance system to be built more quickly. \section{Functional requirements}  The functions of the combined AAS and BEASST systems (hereafter collectively referred as ``the AAS'' since they can be considered to be a single system addressing alignment needs) can be briefly described as: