FILE - This Thursday, Feb. 28, 2013, file photo shows a parking 

FILE - This Thursday, Feb. 28, 2013, file photo shows a parking lot at Caterpillar Belgium, in Gosselies, Belgium. Caterpillar Inc. reports quarterly financial results before the market opens on Monday, April 22, 2013. (AP Photo/Yves Logghe, File)
Associated Press
FILE - This Thursday, Feb. 28, 2013, file photo shows a parking lot at Caterpillar Belgium, in Gosselies, Belgium. Caterpillar Inc. reports quarterly financial results before the market opens on Monday, April 22, 2013. (AP Photo/Yves Logghe, File)
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