Texas on the Potomac  Washington news with a Texas accent  Obama
administration losing top border security official   Alan Bersin
leaving top border security post   Homeland Security Secretary
Janet Napolitano has moved quickly to replace the departing head
of U.S. Customs and Border Protection, the agency that overseas
the nation’s border security with law enforcement agents such as
U.S. Border Patrol.     Napolitano has named CBP deputy
commissioner David V. Aguilar to lead the sprawling agency and
field operations chief Thomas Winkowski to serve as acting
deputy commission.     The two career officials “bring decades
of experience on the front line and will continue their proven
leadership of the men and women at CBP as they protect our
country against terrorist threats, secure our borders and foster
lawful travel and trade,” Napolitano said.     The homeland
secretary made the announcement after Alan Bersin announced he
would be leaving his post as commissioner of U.S. Customs and
Border Protection on Dec