There is something very odd about the report of a video claiming responsibility for the Tel Aviv bomb, as Xymphora points out.

See:
http://www.haaretzdaily.com/hasen/spages/545147.html
http://xymphora.blogspot.com/2005/02/incriminating-videotape.html.

And predictably the Israelis are now threatening attacks on Syria.
http://news.scotsman.com/latest.cfm?id=4185287

Again, the question to be asked is "who benefits?".