S.1738 - Federal Government - A bill to establish a Special Counsel for Child Exploitation Prevention and Interdiction within the Office of the Deputy Attorney General, to improve the Internet Crimes Against Children Task Force, to increase resources for regional computer forensic labs, and to make other improvements to increase the ability of law enforcement agencies to investigate and prosecute predators.

Combating Child Exploitation Act of 2007 - Requires the Attorney General to appoint a Special Counsel for Child Exploitation Prevention and Interdiction within the Office of Deputy Attorney General to coordinate Department of Justice policies and strategies for the prevention and investigation of child exploitation cases.

Establishes within the Office of Justice Programs an Internet Crimes Against Children Task Force (ICAC Task Force), consisting of state and local task forces (one task force for each state) to address online enticement of children, child exploitation, and child obscenity and pornography cases.

Requires the Attorney General to establish a National Internet Crimes Against Children Data Network Center to assist the ICAC Task Force program and federal, state, local, and tribal agencies investigating and prosecuting child exploitation.

Authorizes the Attorney General to award grants to state and local ICAC task forces to combat Internet crimes against children.

Requires the Attorney General to establish additional computer forensic capacity to address backlogs, including for child exploitation investigations.

Amends the federal criminal code to authorize wiretapping in state child exploitation investigations.

Authorizes funding for additional agents and personnel for the Federal Bureau of Investigation (FBI), the Bureau of Immigration and Customs Enforcement, and the U.S. Postal Service.