  The recent Letter by Bender, Berry, and Mandilara (2002, BBM) presents some
interesting symmetry arguments which enable one to transform non-hermitian, PT
invariant, (complex) polynomial potential hamiltonians, into secular equation
representations with real coefficients. This achievement is claimed to
``demistify'' why these systems can admit real and/or complex eigenenergies.
Two approximations underly their arguments, and weaken the implied significance
of their work.
