Uh, wait a second there.
An examination of American newspapers and magazines from 1944 show that indeed the uprising of that year was covered, and publicized--and that there was much resentment that the Soviets did not hurry to Warsaw, to help.
On the other hand, the uprising of 1943 was barely known of at the time, and not in the newspapers and magazines at all.
But to be fair, the closest Allied troops to Warsaw were hundreds of miles away in 1943, it was much tougher to get detailed information on what exactly was happening then. Remember most didn't know about the concentration camps until the camps were actually liberated.
I am sorry, I do not have much access to the "American newspapers and magazines from 1944". What I notive is that most of people in America today know about the uprising in Warsaw Ghetto of 1943 and if they hear about general Warsaw uprising of 1944 they confuse it with the first.