"FILE - In this Oct. 11, 2014 file photo, Keith Mathias-O'Chez, an inspector of building materials for the U.N. Relief and Works Agency, visits one of seven mixing concrete factories that are responsible for preparing the concrete for the U.N. projects in the Gaza Strip. Gaza reconstruction is moving at a ""snail's pace"" and at this rate, it would likely take 30 years to rebuild the extensive damage from last summer's Israel-Hamas war, a senior U.N. official said. Roberto Valent, the incoming area chief of a U.N. agency involved in reconstruction told The Associated Press on Wednesday, June 24, 2015 in an interview that the system is too slow and Israel must open Gaza's borders to allow for the speedy rebuilding or repair of 141,000 homes he said suffered minor to severe damage or were destroyed. (AP Photo/Khalil Hamra, File)"
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