Taliban and American aid. After the September 11 attacks, it was necessary for conservatives to somehow explain away the fact that the US government gave 245 million dollars to the new evildoers du jour. Never mind the fact that authors such as Robert Scheer warned of aiding the Taliban as early as in May 2001. Never mind that they did so not out of some humanitarian motivation, but because of the Taliban's violent enforcement of the ban on opium poppies. Never mind that in a regime that is controlled by warlords, it does not matter who is authorized to distribute the aid -- the ruling regional warlords will seize control of it and use it to their own advantage. Never mind that this very argument has been used by hawks in opposition to sending humanitarian aid to Iraq's Saddam Hussein. Never mind that the Taliban continued selling opium in spite of the deal. Never mind that this is all documented on Michael Moore's website about the film. Gun homicides. Statistics are Moore's weakest point, and it is surprising that his critics don't dwell on them longer. That's because they know all too well that Moore is correct: The United States have a far greater homicide rate (both gun- and non-gun) than most other first world countries. His main mistake is that he does not use population corrected data, his second mistake is that he does not cite his sources (and, as you correctly point out, he probably uses different reporting methods for the different countries). A good comparison of international homicide rates can be found on the relatively neutral guncite.com website.

US government gave how much money to new evildoers du jour?

Right after the Pentagon was hit, NEADS learned of another possible hijacked aircraft. It was an aircraft that in fact had not been hijacked at all. After the second World Trade Center crash, Boston Center managers recognized that both aircraft were transcontinental 767 jetliners that had departed Logan Airport. Remembering the "we have some planes" remark, Boston Center guessed that Delta 1989 might also be hijacked. Boston Center called NEADS at 9:41 and identified Delta 1989, a 767 jet that had left Logan Airport for Las Vegas, as a possible hijack. NEADS warned the FAA's Cleveland Center to watch Delta 1989. The Command Center and FAA headquarters watched it too. During the course of the morning, there were multiple erroneous reports of hijacked aircraft. The report of American 11 heading south was the first; Delta 1989 was the second. NEADS never lost track of Delta 1989, and even ordered fighter aircraft from Ohio and Michigan to intercept it. The flight never turned off its transponder. NEADS soon learned that the aircraft was not hijacked, and tracked Delta 1989 as it reversed course over Toledo, headed east, and landed in Cleveland. But another aircraft was heading toward Washington, an aircraft about which NORAD had heard nothing: United 93. United Airlines Flight 93 FAA Awareness. At 9:27, after having been in the air for 45 minutes, United 93 acknowledged a transmission from the Cleveland Center controller. This was the last normal contact the FAA had with the flight. Less than a minute later, the Cleveland controller and the pilots of aircraft in the vicinity heard "a radio transmission of unintelligible sounds of possible screaming or a struggle from an unknown origin." The controller responded, seconds later: "Somebody call Cleveland?"This was followed by a second radio transmission, with sounds of screaming.

How did the Cleveland controller respond to a transmission that seemed to signify trouble?

What if two children push a swing at the same time? Would the swing go higher? Yes, together their force would be more. It is common for forces to be combined. Most objects on Earth have at least two forces acting on them. Do you know what one of them is? Of course, that force is gravity. How many forces do you have on you right now? Gravity pulls you down toward the center of Earth. Your legs exert a downward force. They hold you up against the pull of gravity. Consider the example in Figure 1.3. A book is resting on a table. Gravity pulls the book downward. It has a force of 20 newtons. At the same time, the table pushes the book upward. Its force is also 20 newtons. The table opposes the pull of gravity.
At what level of force does the table oppose gravity?