Station locker to be closed down before and during the Obama's visit....

While boarding on train, these days you will see some message about the Luggage lockers and  wondering whats it about?
The train operators in Tokyo and surrounding areas has confirmed that they will be shutting down the coin-operated luggage lockers at the main station before and during the  united states President Barack Obama`s visit Next week.It is confirmed that the U.S president Obama will be on 3-day visit to Japan from Wednesday April 23rd.This measure of closing down the Luggage locker will be taken to prevent possible terrorist attacks using hazardous materials.Tokyo Metro will shut down the lockers at more than 30 subway stations in central Tokyo from April 18th to 25th.