For example, I was taught in school that gasoline and diesel engines were basically at the peak of engineering capabilities........ that no other fuel works as well. But if you check the "real" history, you'll find that back in the early 1900's, Henry Ford built an engine perfectly suitable for alcohol. The strange thing is, when other inventors started looking at alcohol as a clean substitute fuel for the combustion engine, the United States suddenly went into what's known as Prohibition. If you do the research on the Internet, you will find out that prohibition was started by the oil barons, not by church folks wanting alcohol banned. None of that is listed in science or history.
You will find once you research it that there was no reason to add lead to gasoline except to destroy the ability of newly invented carburetors in the early 20th century. More than a handful of them were invented to get over 80 miles per gallon out of a V-8 engine. When lead was outlawed, gasoline producers put new chemicals in the gasoline to destroy the ability of these new carburetors. None of this is listed in science or history, because someone had the finances to keep it out.
Also, one of the first electric cars built got 20 miles to a single charge. Yet it was also buried so no one would find out. So, yes, US history and science is badly flawed due to the covering up of the truth. How much more would you think the same government would cover-up the truth about Christianity?