"Cast Lead"

This was put to me by a friend of mine and I wondered if anyone had any thoughts on it. All will have noticed I'm sure the parallels between Hanukkah and the current conflict in Gaza which commenced on the Sabbath.

However I'm pondering on the question as to why Israel has called the Gaza conflict - Operation “Cast Lead”.

According to Wikipedia it is from a Hanukkah song. (Note emphasis in capitals mine)

For Hanuka by HN Bialik
Father lighted candles for me; Like a torch the Shamash shone. In whose honor, for whose glory? For Hanukkah alone.
Teacher bought a big top for me, Solid (CAST) LEAD, the finest known. In whose honor, for whose glory? For Hanukkah alone.
Mother made a pancake for me, Hot and sweet and sugar-strewn. In whose honor, for whose glory? For Hanukkah alone.
Uncle had a present for me, An old penny for my own. In whose honor, for whose glory? For Hanukkah alone.

However I'm wondering if It might be in reference to Zec 5:6 And I said, What is it? And he said, This is an ephah that goeth forth. He said moreover, This is their resemblance through all the earth. 7 And, behold, there was lifted up a talent of lead: and this is a woman that sitteth in the midst of the ephah. 8 And he said, This is wickedness. And he cast it into the midst of the ephah; and he CAST the weight of LEAD upon the mouth thereof.

Just wondering if anyone can shed any light or has any further thoughts?

Toda!

Catherine