May 8, 2018 6:50 am
Updated: May 8, 2018 8:11 am

Trump to decide fate of Iran nuclear deal: Here’s what to know about the agreement

ABOVE: U.S. President Donald Trump said he may consider negotiating a new nuclear agreement with Iran if the U.S. chooses to walk away from the current deal.

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Iran’s nuclear deal with world powers faces its biggest diplomatic challenge yet as U.S. President Donald Trump appears poised to withdraw the United States from the accord.

READ MORE: Trump to announce long-awaited ‘decision’ on Iran nuclear deal Tuesday

What is the atomic agreement and why does it face criticism now?

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At its heart, the 2015 deal imposes restrictions on Iran’s nuclear program that make it impossible for Iran to produce a bomb, in return for the lifting of most of the U.S. and international sanctions against it. But the accord has a series of time limits.

Under its terms, Iran only can maintain a stockpile of 300 kilograms (661 pounds) of low-enriched uranium, compared to the 100,000 kilograms (220,460 pounds) of higher-enriched uranium it once had. Iran can only enrich uranium to 3.67 per cent, which can be used to fuel a reactor but is far below the 90 per cent needed to produce a weapon. The deal also limited the number of centrifuges Iran can run and restricted it to an older, slower model.

WATCH: Historic Iran nuclear deal reached

Iran also reconfigured a heavy-water reactor so it couldn’t produce plutonium and agreed to convert its Fordo enrichment site — dug deep into a mountainside — into a research center. It granted more access to International Atomic Energy Agency inspectors and set up a system that allows the U.N. watchdog to inspect other sites.

In exchange, world powers lifted the crippling economic sanctions that had locked Iran out of international banking and the global oil trade. It allowed Iran to make purchases of commercial aircraft and reach other business deals. It also unfroze billions of dollars Iran had overseas.

READ MORE: ‘There could be war,’ France’s Emmanuel Macron warns if Trump withdraws from Iran deal

The deal, however, does not directly stop Iran from testing or firing ballistic missiles. It also has a series of rolling expiration dates. In eight-and-a-half years, for example, Iran can start testing up to 30 more advanced centrifuges, a number it can greatly expand two years later.

Fifteen years after the deal, restrictions on Iran’s uranium enrichment and stockpile size end.

WATCH: Iran president warns of ‘problems’ as Trump decision looms

After 15 years

During the life of the accord, Iran is limited to a level where it cannot produce a bomb and — if the deal were to fall apart today — experts say it would need at least a year to build one. If Iran violates the deal, sanctions can immediately be re-imposed.

READ MORE: Trump aides hired Israeli spy firm in attempt to kill Iran deal, report says

After those 15 years are up, Iran could have an array of advanced centrifuges ready to work and the limits on its stockpile would be gone. It could then throw itself wholeheartedly into producing highly enriched uranium. Of course, the West would also be free to try to rein it again with sanctions.

The deal’s architects and supporters say the idea is to increase dialogue and trust during the intervening 15 years and negotiate an extension or a new accord. Later deals, they argue, also can tackle other outstanding issues between Iran and the West.

‘Worst deal ever’

The nuclear agreement marked former President Barack Obama’s biggest foreign accomplishment. Trump, who has called the deal “a disaster” and “the worst deal ever,” has worked on unwinding much of Obama’s domestic and foreign agenda.

WATCH: President Trump tears into Iran during speech before the UN

Trump criticizes the deal for not including Iran’s ballistic missile program or Tehran’s support of groups like Hezbollah in Lebanon and its aid of embattled Syrian President Bashar Assad. He also has criticized the fact the deal’s terms expire. He said the accord “threw Iran’s dictatorship a political and economic lifeline.”

Israeli Prime Minister Benjamin Netanyahu, long a hawk on Iran, similarly has criticized the deal. Seeking to ensure Trump’s withdrawal, he held a news conference last week alleging “Iran lied” about its nuclear weapon ambitions in the 2000s. But the information he shared seemed to match up with what the IAEA already reported about Tehran’s program.

READ MORE: Benjamin Netanyahu says Israel has proof Iran is pursuing nuclear weapons program

In Iran, meanwhile, many say they haven’t seen the economic benefits that President Hassan Rouhani said would flow in from the accord. The public has been hit by spiraling inflation, fueling nationwide protests in December and January.

Atoms for peace to threats of war

Iran’s nuclear program actually began with the help of the United States. Under its “Atoms for Peace” program, America supplied a test reactor that came online in Tehran in 1967 under the rule of Shah Mohammad Reza Pahlavi. That help ended once Iran’s 1979 Islamic Revolution overthrew the shah.

READ MORE: What does the Iran nuclear deal mean for Canadians?

In the 1990s, Iran expanded its program, including buying equipment from A.Q. Khan, the father of the nuclear program in Pakistan, which has produced an arsenal. Among its activities, Iran “may have received design information” for a bomb and researched explosive detonators, according to the IAEA. By August 2002, Western intelligence services and an Iranian opposition group revealed a covert nuclear site at the central city of Natanz.

Iran to this day denies its nuclear program had a military dimension.

Talks and sanctions

In the early 2000s, Britain, France and Germany launched nuclear negotiations with Iran that the U.S. sat out. By October 2003, Iran suspended enrichment. But it resumed it again in 2006 under hard-line President Mahmoud Ahmadinejad. World powers imposed crippling U.N. sanctions locking Tehran out of the global economy.

WATCH: Iran president says plans in place for any decision by Trump on nuclear deal

The U.S. under the Obama administration started secret talks with Iran in Oman after President Hassan Rouhani, a relative moderate, took office. Iran and world powers ultimately reached the Joint Comprehensive Plan of Action, or the nuclear deal, in 2015.

What happens next?

If Trump pulls out the deal, expect European nations to try to hold the accord together. Iran will likely keep up its criticism of the U.S., but probably won’t back out of the deal, given its business interests. However, the U.S. pullout will weaken Rouhani’s hand in Iranian politics and potentially strengthen hard-liners.

© 2018 The Canadian Press

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