On Jan. 7, 2020, Iran launched more than a dozen ballistic missiles at Iraqi bases housing U.S. troops in retaliation for the United States killing Iranian general Qassem Suleimani. No U.S. troops were killed in the strike, but the Pentagon initially reported that 34 of them suffered traumatic brain injuries. Officials then upped that number to 50, before saying a month later that more than 100 troops suffered brain injuries. Nearly two years after the fact, there are still conflicting numbers for how many brain injuries resulted from the January 2020 Iranian strike, according to a report from the Inspector General (IG) for the Department of Defense (DoD). The IG report (pdf), released Wednesday, said there are two sets of data tracking brain injuries stemming from the January 2020 Iran attack: one from U.S. Central Command and another from the  Joint Trauma Analysis and Prevention of Injury in Combat (JTAPIC) …