People had become verified and had money (BTC or cash) on the exchange.
Mtgox changes it's policy overnight and requires those of verified status to now become trusted status, by sending notarized documents off to Japan via mail (can cost upto about $150 depending on location).
All funds whether BTC or fiat are locked into the exchange until they receive and process this, which can take several weeks, meaning they have effectively seized client funds in the meantime.
To top this there is a BTC withdrawal issue that is preventing even trusted users to withdraw BTC.
you sure this is true? not the same as their anouncement said about the "verified" has to become "trusted"