This March 23, 2016 file photo shows an arrivals and departure board behind blown out windows at Zaventem Airport in Brussels. The airport plans to partially reopen Sunday, April 3, 2016, but the limited number of flights by Brussels Airlines following a 12-day shutdown is meant to be largely symbolic. The airport plans to be back up to 20 percent of capacity by Monday. Photo: AP Photo &#x2014; Geert Vanden Wijngaert, Pool 
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