Upon landing, some rather official looking people boarded, and the flight attendants announced over the PA that everyone must remain seated while customs officials boarded the plane. A woman's scream could be heard from deep in the economy section, and a few minutes later two women with Louis Vuitton handbags were escorted off the plane. No clue what it was all about, but added a bit of excitement.
There is a certain issue on this route, and I am sure that there was something on the news around the time that you got in, so it may have been related to your flight.