US Bishops

JIM WATSON/AFP/Getty Images

President Barack Obama announcing original compromise in February.(JIM WATSON/AFP/Getty Images)

The nation's Catholic bishops have again voiced doubts about the Obama administration's plans to modify a mandate for employers to provide free birth control coverage, vowing to press a new campaign to rally Americans to defend religious freedom.

Despite their skepticism, a statement issued Wednesday (March 14) by leading bishops at the end of a closed-door meeting in Washington was notable for lacking the "war on religion" rhetoric that has characterized many of the hierarchy's broadsides against the White House.

While the bishops called the proposal unveiled by President Obama on Feb. 10 "an unspecified and dubious future 'accommodation,'" they also stressed that they are willing to "accept any invitation to dialogue" with the White House.