The European Union's executive will propose on Wednesday a raft of technical measures to strengthen its external borders as it seeks to tackle both an uncontrolled influx of migrants and security threats following deadly attacks in Paris and Brussels.
More than 160 people were killed in the November shooting and bombing attacks in Paris and suicide bombings in Brussels in March. The deadly strikes, claimed by Islamic State, strengthened the hand of those campaigning for tighter security checks and data sharing against those who warn of the risks of abuse and undermining privacy through enhanced surveillance.
In its proposal on Wednesday, seen by Reuters ahead of official publication, the European Commission said the carnage in Paris and Brussels "brought into sharper focus the need to join up and strengthen the EU's border management, migration and security cooperation."
Europol chief Rob Wainwright highlighted separately on Tuesday an "indirect link" between Europe's migration crisis, which saw more than a million people arriving over the last year, and the Islamist militant threat, saying some militants had used the chaotic migrant influx to sneak in.
EU border agency Frontex also said that two of the perpetrators of the Nov. 13 attacks in Paris had entered through Greece and been registered by Greek authorities after presenting fraudulent Syrian documents.
"EU citizens are known to have crossed the external border to travel to (Middle East) conflict zones for terrorist purposes and pose a risk upon their return. There is evidence that terrorists have used routes of irregular migration to enter the EU," the Commission said in its proposal.