let's get more on what this will mean from our brussels correspondent meabh mcmahon. talk us through this. what exactly have european states agreed to? meabh: for the last five years since 2011, when it was first put on the table by the european commission, representatives from ,he european parliament counsel, and commission have been trying to draft a directive regarding passenger name records. they will be especially monitoring people taking frequent flights to places like syria and iraq to wage jihad. the passenger name record means basically that all the data we type in when booking a flight -- shared with security and police officers and retained for up to five years. after six months, our names will be masked. it has taken two years to implement the passenger name record, a bit of a controversial topic. that is why it took so long to get through all the institutions. the european parliament has co-decisions so everything that was proposed can be checked to make sure it is ok. the problem that many political groups have, the far left, they had a big problem with t