Pennsylvania bill requires women to prove they were raped

The "War on Women" seems to be continuing particularly in regards to the issue of rape and sexual assault  According to a bill currently in the Pennsylvania House regarding the reduction of welfare benefits for low-income women, women who become pregnant from rape must prove she reported the assault.

Proposed by four Republicans and one Democrat, the bill would eliminate "an increase in benefits if a child is conceived while a woman is covered under the Temporary Assistance To Needy Family program." While a woman can seek an exception to this rule if the child is conceived as a result of rape, she must prove she reported the incident and gave authorities her assaulter's identity.

The actual language of the bill reads:

Elimination of benefits under subsection (d) shall not apply to any child conceived as a result of rape or incest if the department: (1) receives a non-notarized, signed statement from the pregnant woman stating that she was a victim of rape or incest, as the case may be, and that she reported the crime, including the identity of the offender, if known, to a law enforcement agency having the requisite jurisdiction or, in the case of incest where a pregnant minor is the victim, to the county child protective service agency and stating the name of the law enforcement agency or child protective service agency to which the report was made and the date such report was made.

The Huffington Post reports that according to the Rape, Abuse, & Incest National Network, 54 percent of rapes and sexual assaults are not reported to the police, meaning many women would not be granted an exception under the proposed bill because they did not report the assault or could not recall what their assaulter looked like.

Is this another example of the War on Women? Why are more and more politicians discussing rape and decreasing womens' rights?