Allison Joyce / Getty Images A man wearing the school colors of Sandy Hook Elementary School links arms with people in anticipation of blocking the view of the protesters from the Westboro Baptist Church near the wake of school principal Dawn Hochsprung on Dec. 19 in Woodbury, Conn.

More than 475,000 people have signed petitions asking the White House to crack down on Westboro Baptist Church after the group, known for holding anti-gay demonstrations at funerals, threatened to picket in Newtown, Conn.

Newtown was the site of a school massacre on December 14 in which 20 young children and six adults were killed.

Newtown victims honored

Five petitions posted on the White House website since the shootings have asked the government to name the church, based in Topeka, Kan., a hate group or end its tax-exempt status. The requests were among the most popular on the White House site on Thursday.

The Southern Poverty Law Center, a civil rights organization, has called the church "arguably the most obnoxious and rabid hate group in America" because of the anti-gay signs its members have carried at hundreds of military funerals. Church members say the protests reflect their view that God is punishing America for tolerance of gays and lesbians.

The church has successfully defended its right to free speech in court. The church could not be immediately reached for comment.

The White House did not respond to a request for comment on whether it would address the petitions.

The White House has a policy of responding to petitions that reach a threshold of 25,000 signatures but does not comment on certain law enforcement issues that are within the jurisdiction of federal agencies or courts.

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More than 48,000 people have signed a petition that they posted on the White House website demanding that British CNN talk show host Piers Morgan be deported over comments he made on air about gun control. Morgan lambasted pro-gun guests on his show after the mass shooting at Sandy Hook Elementary School.

"We demand that Mr. Morgan be deported immediately for his effort to undermine the Bill of Rights and for exploiting his position as a national network television host to stage attacks against the rights of American citizens," the petition said.

Obama last week asked Americans to pressure Congress to help tighten gun laws. He responded after several hundred thousand people signed a dozen petitions calling for tougher gun laws following the Newtown attack.

Twenty-year-old Adam Lanza used a military-style assault rifle to kill 20 elementary school children and seven adults, including his mother shot earlier at the family home, then he took his own life.

Obama has called for Congress to approve a ban on the sale of military-style assault weapons and a ban on the sale of high-capacity ammunition clips, as well as measures to ensure background checks for gun purchases at gun shows.

Slideshow: Newtown school massacre Brendan Smialowski / AFP - Getty Images A nation mourns after the second deadliest school shooting in U.S. history at Sandy Hook Elementary, which left 20 children and six staff members dead. Launch slideshow

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