The Palestinian Authority refuses on an ongoing basis to take the necessary steps to prevent terrorists from getting into Israel.
Generally, you are held to a sound and that becomes your sound. That gets branded as your sound, and all the copycats start with it because the labels are looking for that sound.
Hence a ship is said to be tight, when her planks are so compact and solid as to prevent the entrance of the water in which she is immersed: and a cask is called tight, when the staves are so close that none of the liquid contained therein can issue through or between them.

