Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

Q: In what has been dubbed the biggest loan fraud in India’s history  the No. 2 state-run lender PNB (PNBK.NS) has alleged that two employees at a Mumbai branch colluded with firms linked to well-known jewelers  Nirav Modi  and  his  uncle  Mehul Choksi.
A lawyer for  Modi  has denied his client was involved in any fraud. Choksi has not commented but his firm  Gitanjali Gems (GTGM.NS)  has also denied involvement in the alleged fraud.
Separately  PNB said a news report that it had approached the global accounting firm PwC to conduct a probe into the alleged fraud that would help it build a case against  Nirav Modi  and  his  associates was “totally incorrect”.
Bollywood actor Priyanka Chopra  who also stars in the U.S. television series “Quantico”  terminated her contract as the brand ambassador for Nirav Modi’s eponymous high-end diamond jeweler stores  which stretch from New York to Beijing  her spokesman said.

A: India's RBI orders changes to bank protocols after $1.8 billion fraud case
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Q: Neighbors walk under the rain past a washed out road in Alajuelita on the outskirts of San Jose  Costa Rica  Thursday  Oct. 5  2017.  Tropical Storm Nate  formed off the coast of Nicaragua on Thursday and was being blamed for at least 17 deaths in Central America as  it  spun north toward a potential landfall on the U.S. Gulf Coast as a hurricane over the weekend. (Moises Castillo/Associated Press)
MANAGUA  Nicaragua â  Newly formed Tropical Storm Nate  was blamed Thursday for at least 22 deaths across Central America as  it  dumped rain across the region on a path that would carry  it  toward a potential landfall on the U.S. Gulf Coast as a hurricane over the weekend.
The U.S. National Hurricane Center said  the storm  could cause dangerous flooding by dumping as much as 15 to 20 inches (38 to 50 centimeters) of rain as  it  moved over Honduras  with higher accumulations in a few places.
In Nicaragua  Nateâs arrival followed two weeks of near-constant rain that had left the ground saturated and rivers swollen. Authorities placed the whole country on alert and warned of flooding and landslides.

A: Tropical Storm Nate blamed for 22 deaths; threatens US coast
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Q: The prime minister  is to call on investors to boycott social media platforms that do not delete and censor perceived âextremistâ views.
Speaking at the Davos World Economic Forum  Theresa May will argue that not enough is being done to fight terrorism and paedophiles online.
âTechnology companies still need to go further in stepping up to their responsibilities for dealing with harmful and illegal online activity â  the prime minister  will say according to advance extracts of  her  speech.
Tech companies need to take their responsibilities to society seriously. Thatâs why today at #Davos18  in front of the worldâs leading business men and women  I will set out how together we can shape the standards  norms and rules of how we behave in the digital world. #WEF18 pic.twitter.com/PMgXWVTNvL â Theresa May (@theresa_may) January 25  2018

A:
Theresa May at Davos: Investors Must Boycott Social Media Firms Not Censoring 'Extremist' Views
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