Add spaces between the words in the following text: AESprovidesstrongencryptionandhasbeenselectedbyNISTasaFederalInformationProcessingStandardinNovember2001(FIPS-197),andinJune2003theU.S.Government(NSA)announcedthatAESissecureenoughtoprotectclassifiedinformationuptotheTOPSECRETlevel,whichisthehighestsecuritylevelanddefinedasinformationwhichwouldcause"exceptionallygravedamage"tonationalsecurityifdisclosedtothepublic.
AES provides strong encryption and has been selected by NIST as a Federal Information Processing Standard in November 2001 (FIPS-197), and in June 2003 the U.S. Government (NSA) announced that AES is secure enough to protect classified information up to the TOP SECRET level, which is the highest security level and defined as information which would cause "exceptionally grave damage" to national security if disclosed to the public.