This question is based on an incorrect supposition. Not all Mormons are liars; most Mormons are not liars.
The daintree rainforest is a tropical rainforest.
The Amazon Rainforest is a Tropical Rainforest
Liars - band - was created in 2000.
The ISBN of Liars in Love is 0440046696.
Liars in Love was created in 1981.
Beheading the Liars was created in 2008.
A Pack of Liars was created in 1988.
The Liars' Club was created in 1995.
The ISBN of The Liars' Club is 0670850535.
It's not that all fishermen are liars or that only liars fish. The problem lies with the uncanny ability of the fish to keep growing after it is caught.
There is no technical term for the fear of liars. People who fear liars may have trust issues for different reasons.