Americans provide the technique, the EU does the dirty work - as it has always been, like as it is with McDonald's. The monitoring of foreign data streams is thanks to complicated analysis tools from the USA (laptops, i-phones, Windows 8), it got easy for EU intelligence agents as access a Portuguese Twitter messenger and understand Spanish.
Storing the data:
Everyone knows the problem: you simply tilt juice over your keyboard while you are surfing the INTERNET and you hard-disk will collapses; loving-fully maintained Porn archives and other useless data of you boring live disapear. For this reason, the valiant NSA agents have taught their European colleagues to save weekly backups of entire generated illicit data in cargo ship's large underground servers, - and absolutely never keeping their drinks next to valuable electronics.
Proper dealing with information:
American laissez-faire meets European Stubbornness. Where the staff of the European intelligence agencies (EIA) pay strict adherence to the rules of no matter how ludicrous they are, the Yanks leave a few Password-lists in their office kitchen between empty fast food packages and upload huge amounts of data in an unsecured cloud. That makes the work then so relaxed and friendly and also helps if required by our beloved security priest any stupid and average faces on the planet to reach worldwide fame. The European intelligence agencies are currently working doggedly at a conversion of American habits.
Laying together are under a blanket:
Just lie for a while and enjoy how cozy this can be. This makes it easier to manipulate each others hubs of information for accurate processing, enter spy tools in off and on mode - collaboration can be soooo beautiful! Monitoring, scrutinizing and interference in intimate affairs of each other deepens the relationship between the intelligence agencies in the so called civilized world. But beware, dear European intelligence agencies (EIA): The NSA goes with pretty much any other foreign intelligence to bed! Here it is, force a decision: me or the bitches of the GCHQ ...