The accord will allow investigators to exchange a wealth of biometric and biographical data. This should facilitate the search for terrorist suspects as well as serious criminals.
The Belgian Justice and Interior Ministers signed the agreement on behalf of Belgium. For the US Attorney-General Eric Holder put his signature under the deal.
The Belgian Foreign Ministry insists that the accord contains sufficient guarantees to protect people's privacy.
Belgium is the 20th country to conclude such an agreement with the US. Earlier Germany, the Netherlands and Finland all preceded us.