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I can't comment on the sources used, since the creators didn't see fit to provide any. I will mention a few things that make me question the trustworthiness of this 'presentation'.
Depleted uranium is not 'nuclear waste'. Nuclear waste is what comes out of a nuclear reactor - unfissioned fuel and fission products. It is highly radioactive (decreasing over time) and dangerous. Depleted uranium is uranium ore which has been partly stripped of the mildly radioactive isotope U235, leaving the mostly stable isotope U238.
Some have already pointed out the fact that the creators don’t seem to understand what a half life means. I’ll just mention that isotopes with long half lives are less radioactive than those with short half lives. So the longer the half life, the ‘cooler’ the substance. 4.5 billion years is so long as to be essentially stable.
Finally, the claim that radiation levels have increased in Baghdad is meaningless as it stands. What kinds of radiation? Turning on a bunch of antiaircraft radars will certainly increase radiation levels. The sun coming up in the morning massively increases radiation levels. (Dangerous, cancer-causing radiation at that.) Regardless, whatever is causing this increased radiation it is not depleted uranium, which, again, is of such low activity as to be essentially stable.
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