Obama's Subliminal Tower of Babel?

You'll notice in the upper left quadrant of the proposed Obama Tower of Babel Crackhouse and Home for Wayward Sociopaths, er, Presidential Library, there appears to be  a series of truncated or inverted letters...perhaps a disguised quote or subliminal message. It could be some sort of jumbled message, random words and letters... incoherent at first blush, and therefore emblematic of most of Obama's speeches!

Perhaps the architect will enlighten us?