"They deserve the space to conduct their discussions with some semblance of confidentiality until they are ready to announce whatever agreement they have," Napolitano said.
One detail she did illuminate was on the cost of conducting background checks for the approximately 11 million illegal immigrants currently in the United States practicing "de facto" amnesty. Those seeking citizenship would have to pay a fee for the biometric and background check processing, as well as a fine for living in the United States illegally.
"As we advise the White House, there are ways to deal with [the administration costs] without getting a big number," Napolitano said.
Lawmakers are expected to unveil comprehensive immigration proposals in the coming weeks.