<prompt> Translate the following text to EnglishWanasema kwamba Vipande vya habari vilivyopigwa na Venona, ambavyo vingi vimechapishwa, vinaonyesha waziwazi kwamba si tu kwamba Alger Hiss na familia ya Rosenberg walikuwa wapelelezi, lakini pia kwamba kulikuwa na ushawishi mkubwa wa Sovieti nyuma ya Ukomunisti wa Marekani kuliko mtu yeyote aliyewahi kujua.  <response>: They contend that the so-called Venona intercepts, a few of which have been released, show definitively not only that Alger Hiss and the Rosenbergs were spies but also that there was far more Soviet string-pulling behind American Communism than anyone ever knew. 