IMHO I noticed severely increased security when I arrived from LHR (!!) yesterday into 2E. I have had this happen coming from IST or TBS but LHR??
1) 4 customs agents on the jet bridge asking to see passports
2) Each and every passport scanned and people questioned (I have an EU passport but still...)
3) AFTER leaving the customs area as I was about to go down the escalator to take the RER 4 MORE customs agents... one approached me and asked me where I was coming from and going to...
Never seen this much security... even post Nov 13....
So absolutely-- YES.