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So far we have images of the universe when it was half a million years old
and more than a billion years old, but none in between. The construction
of large aperture infrared telescopes will provide us with a new photo
album of the universe at intermediate ages. I will describe the science
drivers for acquiring this expensive album. A snapshot survey of candidate
HII regions selected in redshifted 21cm image cubes may prove to be the
most efficient method for finding very high redshift quasars and galaxies.
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