Why was the National Bank controversial?

Bank of Dickson 11 Bank of Whittier, National Association 2 Bay Bank 6 Charter West Bank 8 EntreBank 8 First Choice Bank 8 First Citizens Bank of Butte 3 First Farmers & Merchants Bank 2 FIRST HAWAIIAN Bank 11 FIRST National Association National Bank OF HUTCHINSON 5 First State Bank of DeKalb County 7 FORCHT Bank National Association 9 Heartland State Bank 10 Highland State Bank 6 Mound City Bank 6 PINNACLE Bank 13 SMBC MANUBANK 15 SPIRITBANK 14 TXN Bank 15 US CENTURY Bank 9