Sylvia,
Strong evidence exists that Josephus' work was tampered with. A 4th-century Catholic named Eusebius appears to have put the interpolation in about Jesus and his miracles, etc. Eusebius was a bishop and a propagandist.
Here's a key quote I found:
Not a single writer before the 4th century – not Justin, Irenaeus, Clement of Alexandria, Tertullian, Cyprian, Arnobius, etc. – in all their defences against pagan hostility, makes a single reference to Josephus’ wondrous words.
The third century Church 'Father' Origen, for example, spent half his life and a quarter of a million words contending against the pagan writer Celsus. Origen drew on all sorts of proofs and witnesses to his arguments in his fierce defence of Christianity. He quotes from Josephus extensively. Yet even he makes no reference to this 'golden paragraph' from Josephus, which would have been the ultimate rebuttal. In fact, Origen actually said that Josephus was "not believing in Jesus as the Christ.
" Origen did not quote the 'golden paragraph' because this paragraph had not yet been written. It was absent from early copies of the works of Josephus and did not appear in Origen's third century version of Josephus, referenced in his Contra Celsum.
We have to be careful about source material. Here's a site with more details: http://www.jesusneverexisted.com/josephus-etal.html