A header contains the information required to route data on the Internet, and has the same format regardless of the type of data being sent. This is the same for an envelope where the address format is the same regardless of the type of letter being sent.
Con: Disadvantages of Prison Privatization In response to arguments in defense of privatization, opponents counter that private prisons are not more cost-effective than public prisons, do not on the whole perform better than their public counterparts, and are actually less transparent and accountable.
The Pentagon detention center that started out in January 2002 as a collection of crude open-air cells guarded by Marines in a muddy tent city is today arguably the most expensive prison on earth, costing taxpayers $800,000 annually for each of the 171 captives by Obama administration reckoning.