ABC News' Huma Khan reports: Congress is under pressure to cut the rapidly rising costs of the federal government’s food stamps program at a time when a record number of Americans are relying on it.

The House Appropriations Committee today will review the fiscal year 2012 appropriations bill for the Department of Agriculture that includes $71 billion for the agency’s “Supplemental Nutrition Assistance Program.” That’s $2 billion less than what President Obama requested but a 9 percent increase from 2011, which, critics say, is too large given the sizeable budget deficit.

A record number of Americans -- about 14 percent -- now rely on the federal government’s food stamps program and its rapid expansion in recent years has become a politically explosive topic.

More than 44.5 million Americans received SNAP benefits in March, an 11 percent increase from one year ago and nearly 61 percent higher than the same time four years ago.

Nearly 21 million households are reliant on food stamps. (read more)