The Bulgarian investigation into last July's terrorist attack against Israeli tourists in Burgas points squarely at Hezbollah. Surely, with the report's release this week, the European Union must finally do the right thing and add the Lebanese group to its terror list. Think again.

"There is no automatic listing just because you have been behind a terrorist attack," EU Counterterrorism Coordinator Gilles de Kerchove told EUobserver last week, in anticipation of the report. "As always in the listing process, you...