U.S. feared Brussels attack but lacked hard intelligence: officials

The United States lacked specific intelligence warning of Tuesday's attacks in Belgium but strongly believed that such a strike was possible, particularly after Belgium's arrest last week of a key suspect in the Paris attacks, U.S. officials said. Thirty-four people were killed in blasts at Brussels airport and in a rush-hour metro train in the Belgian capital, triggering security alerts across Europe and bringing some cross-border traffic to a halt. The attacks came just four days after the arr