Processing Personal Data on EU Cross-Border Movements to Fight Terrorism*

1. Jihadist Terrorism as a Cross-Border Phenomenon. — 2. The Importance of the Sharing of Data on Cross-Border Movements within the Schengen Area. — 3. The New Directives on the Processing of Data and the Safeguarding of National Security. — 4. The Passenger Registry (Personal Name Record or PNR). — 5. When Data Crosses the External Border: Data Sharing with Non-EU Third Countries. — 6. Closing Remarks.