Getting back to the issue of the slippery slope to racial profiling that this BDO program is on ...

Unfortunately, there are all too many voices, even among members of Congress, overtly calling for routine use by the TSA of profiling based on race, ethnicity, and religion.
http://thinkprogress.org/security/20...tra-profiling/
http://mediamatters.org/research/201011190045

Throw in a measly 4 - 5 days of training and pressure to meet implicit quotas into that mix and there's no way that this program can not lead to abuses of civil liberties.