Series of Explosions Mark ETA's Return ; at Least Seven Small Bombs Have Exploded in Spain's Seaside Resorts This Month

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Compared with the ruinous attacks that struck Spain in March, the bombings over the past 14 days in the northern provinces might be expected to attract little notice: Seven weak explosives, wrapped in plastic bags, and weighing less than 300 grams, caused only slight injuries and minor property damage.

But in Spain, a country that has suffered domestic terrorism for the past 30 years, the explosions were an unnerving reminder that ETA, the Basque terrorist group, was still a threat.

The attacks on Spain's northern coast that began August 7 in resort towns like Ribadesella and Santander and occurred as recently as Saturday in Sanxenxo and Baiona are not, …