Carol, you are wrong! I've copied the appropriate text directly from JetBlue website and followed that with a link to the page.

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Prohibited Items in Checked Bags
In addition to the items listed below, the following are also prohibited in carry-on and checked bags on international flights:

Firearms / Ammunition
Television sets (exception for flights to Cuba)
Meat, fish, live shellfish, and seafood
Can't find your item? Be safe: visit the FAA's website for a complete list of prohibited items .
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prohibited items JetBlue - link