  The Universe became fully reionized, and observable optically, at a time
corresponding to redshift z~6.5, so it is only by studying the HI and molecular
absorption lines against higher-redshift, radio-loud sources that one can hope
to make detailed studies of the earliest stages of galaxy formation. At present
no targets for such studies are known. In these proceedings we describe a
survey which is underway to find radio-loud quasars at z > 6.5.
