story i'm joined now by my steam calling helen humphrey from our business desk now china of course is renowned for its historic great wall building started on the mammoth fortification back in the third century b.c. to protect china from in later years right and these days china also has of course another wall known as its great far wall of china it's supposed to protect chinese citizens from undesired foreign influence that's right the first set up back in two thousand the great firewall it blocks access to certain websites and terms that the chinese government deems dangerous any with a criticism of the government or terms that refer for example to the student massacre in timmins where back in one thousand nine hundred nine all of that for him but in the past the tech giant google well it's spoken out against such internet censorship in fact i mean that is why they pulled out of china in twenty ten you know that's a very important point to make at the time google's co-founder said this.