Righthaven is sure making a lot of friends these days.
sarc/
This sort of thing has always been possible ~ newspapers could have pulled it on each other simply by hiring students part time to go through their university news racks to check for otherwise obscure violations.
Today all you need to do is hire an unemployed young person to spend his time in his mother's basement matching up that which appears in the LVJ with stuff elsewhere. In some cases LVJ may well be the source. But, in other cases they won't ~ and if they don't have a release then they are a violator.
Many of the duplicated items will have been run through AP and other "wire services" but as many folks here have noticed AP, et al, are much less careful about how and what they "lift" than they were years back. Even some of the AP stuff appearing in LVJ may well be in violation of copyright.
In many cases a careful analyst would be able to track back to the original source and offer to split the profits by joining in an organized suit against LVJ ~ knowing that the judge will not be sympathetic to LVJ.
LVJ has made this bed and I suspect they can be put out of business the same way.
I guess that is the only way he can make a living. Sueing is more lucrative than writing