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British lawmakers to pay tribute to Margaret Thatcher as debate over legacy continues

  • A card is left on a floral tribute outside former British Prime Minister Baroness Thatcher's home in London, Tuesday, April 9, 2013. Margaret Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Kirsty Wigglesworth)

    A card is left on a floral tribute outside former British Prime Minister Baroness Thatcher's home in London, Tuesday, April 9, 2013. Margaret Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Kirsty Wigglesworth)  (The Associated Press)

  • A view of the St. Paul's Cathedral in central London, Tuesday, April 9, 2013. The funeral service of former British Prime Minister Margaret Thatcher will be held at the cathedral on Wednesday, April 17. Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Lefteris Pitarakis)

    A view of the St. Paul's Cathedral in central London, Tuesday, April 9, 2013. The funeral service of former British Prime Minister Margaret Thatcher will be held at the cathedral on Wednesday, April 17. Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Lefteris Pitarakis)  (The Associated Press)

  • A view of the St. Paul's Cathedral in central London, Tuesday, April 9, 2013. The funeral service of former British Prime Minister Margaret Thatcher will be held at the cathedral on Wednesday, April 17. Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Lefteris Pitarakis)

    A view of the St. Paul's Cathedral in central London, Tuesday, April 9, 2013. The funeral service of former British Prime Minister Margaret Thatcher will be held at the cathedral on Wednesday, April 17. Thatcher, the combative "Iron Lady" who infuriated European allies, found a fellow believer in former US President Ronald Reagan and transformed her country by a ruthless dedication to free markets in 11 bruising years as prime minister, died Monday, April 8, 2013. She was 87 years old. (AP Photo/Lefteris Pitarakis)  (The Associated Press)

British lawmakers are returning from vacation to pay tribute to former Prime Minister Margaret Thatcher, as preparations get under way for a funeral filled with ceremony and security headaches.

Prime Minister David Cameron will lead praise for Thatcher Wednesday during a special session of the House of Commons, recalled from Easter break after the former leader's death on Monday.

Such sessions are usual for former premiers, but are generally brief. More than seven hours has been set aside for Thatcher, a reflection of her status as one of Britain's most iconic — and divisive — leaders.

That division continues, with some questioning the public expense of her April 17 funeral at St. Paul's Cathedral.

Police and security officials are planning for potential disruption from anti-Thatcher protesters or Irish Republican Army dissidents.