World air-cargo growth slows.

Freight demand slowed for international air carriers in the first four months of the year, according to the most recent report from the International Air Transport Association. While passenger demand grew 6.7 percent, cargo growth was much more sluggish at 2.6 percent above the year-ago period. The average load factor, or portion of available space filled, was 75.4 percent.

"While we saw slight changes in April, the story for the first four months of the year is stability," said Giovanni Bisignani, director general and chief …