What unsolved mystery continues to boggle your mind?

Is the body of long-missing Teamsters union boss Jimmy Hoffa really to be found stuck in the dirt somewhere near the swamps of Jersey? The FBI confirmed to NBC News that in October it searched a site ...

The FBI found no evidence of missing Teamsters boss Jimmy Hoffa during a search of land under a New Jersey bridge, a spokeswoman said Thursday. The Pulaski Skyway now becomes another dead end in the ...

For 5 decades, the FBI has searched for clues into the disappearance of former Teamsters union leader Jimmy Hoffa. Dramatic video shows the moment a US fighter jet narrowly dodges an Iranian missile ...