1.   By using donated feed to sustain its cattle, Russia would have more grain available to feed people.

2.   US livestock and feed industries say they have voluntarily stopped using such feed, but the practice was never made illegal.

3.   Farms that used the feed and companies that processed food from them have been tracked down and checked.

4.   Farmers have to use more feed than is actually necessary to make sure every hog eats.

5.   It became clear the feed was also used for pigs and cattle.

6.   Many organizations, though, simply met athletes outside the Olympic venues to record them, and Web sites were able to use those feeds.

7.   The restrictions results from growing fears that the number of Belgian farms that used animal feed tainted with the cancer-causing chemical is larger that thought.