But, though ketamine s promise has stirred excitement among clinicians and neuroscientists, it has also sparked controversy, owing to the drug s potentially harmful side effects.

Egyptian American columnist Mona Eltahawy has once again sparked controversy with an article in Foreign Policy magazine on April 23, 2012, entitled Why Do They Hate Us? about discrimination against women in the Middle East.

Microsoft founder Bill Gates has sparked controversy for his single handed handshake when meeting with the South Korean president. Gates' left hand was jammed into his pants pocket during the handshake, which is considered disrespectful in South Korea.

A movement sparked by bloggers

The sentencing sparked criticism online.

Africa s Immunity Controversy

Anybody know what sparked today's protests?

The Debt Growth Controversy

The advice sparked lots of criticism online.

This sparked the brief but bitter civil war.

Yet closer relations have brought controversy.

But controversy over the chant continues.

That prospect has already sparked renewed financial market volatility.

This attack by Israel has sparked indignation in Malaysia.

The competition has not been without controversy.

Her nomination, however, isn't free of controversy.

Quartz sparked enthusiasm among English speaking Twitter users, as well.

The ads quickly went viral and sparked a heated discussion online.

But the police action sparked outrage among supporters of the organisation.

It failed, and sparked the Second War of Religion (1567 1568).

The opening of the Chungbuk line in 1926 sparked regional development.

Riding the Elephant discusses the project and the controversy.

PARIS Controversy is essential to the advancement of science.

Now, on top of everything, comes the beef controversy.

The controversy is taking place at three different levels

Four years later, unrest over price increases even sparked a coup attempt.

This event has sparked many online reactions, both in favor and against.

The incident sparked indignation against passive politicians as well as religious hardliners.

Hear, you mountains, Yahweh's controversy, and you enduring foundations of the earth for Yahweh has a controversy with his people, and he will contend with Israel.

News of the flotilla raid in Gaza has sparked an uprising in Egypt.

The pun was not lost and the comment sparked a lot of reactions.

The arrival of World War I in Russia in 1914 sparked a change.

Acceptance of racism has sparked a widespread resurgence in racist and xenophobic crimes.

But the controversy threatens to disrupt the April 2 meeting.

It is a debate that is already mired in controversy.

Investigations have just started. The news wasn't free of controversy.

Hear ye, O mountains, the LORD's controversy, and ye strong foundations of the earth for the LORD hath a controversy with his people, and he will plead with Israel.

However, the movie nevertheless sparked protests in other Afghan cities and on university campuses.

President Miguel de la Madrid resorted to currency devaluations which in turn sparked inflation.

Many believe that there is controversy where there simply is not.

Some blogs raise a lot of controversy when they first appear.

However, there is some controversy regarding the efficacy of this treatment.

Two such campaigns in Iran and Palestine have sparked conversation amongst a subset of bloggers.

The launch of the national dialogue process has received much publicity and sparked mixed reactions.

It seems the hijab has set off a national controversy in Norway.