There may be surveillance attempts on Lightning, but I doubt they are having much success. And again, how can you possibly compare that "possibility" -- to the fact that, for example, the government of Israel can send David Marcus a list of IP addresses and say "give us all the Spark transactions associated with these IP addresses"??
Discussion
They can send it to you as well and to any Lightning node as a matter of fact. There's a reason Phoenix and WoS pulled out of the US. Now they are back - but nothing has changed from a tech standpoint.