I'm not surprised about security. Several weeks ago they found a body in the surrounding park; this may be a repercussion. (Don't worry; it wasn't foul play. A transient died of a heart attack I believe.)
Last I went was near the beginning of the year, and security was already more intense than usual. They must have been doing work inside because all of the wheelchairs were moved into a certain room and the windows were freshly covered. Enough of my contacts had been caught/had close calls there that we're letting it cool down for a good while.
Though I'm sure that recent development won't help the situation.