Why aren't we talking about Iranian human rights abuses?

Yahoo - Amid huge fanfare and relief, last week (July 14 2015) a long-negotiated deal was announced to lift sanctions against Iran in exchange for international monitoring and verification to ensure that the country does not develop nuclear weapons.

It was lauded as a success, and contrasts with the global community's failure to prevent India, Pakistan, Israel and North Korea from acquiring nuclear capability.
The deal is welcome. But will it stick?

As well as the possibility that it might be vetoed by the US Congress, there is also the question of whether Iran can be trusted to honour its pledge.

Iran's rulers have ambitions to be a regional and, eventually, global power. Having nuclear weapons would give them leverage and a place at the top table in world affairs.
Tehran calculates that the world would have to take them seriously and would not be able to pressure them if they had the bomb.

Iran's desire for expanded geopolitical influence in the Middle East echoes the existing US and Saudi Arabian influence in the region. The Ayatollahs are already projecting their power beyond their own borders: supporting Hezbollah in Lebanon, Hamas in Gaza and Assad in Syria.
There is also a credibility question mark over the nuclear deal, which the international community has conveniently ignored in its rush to secure and trumpet an agreement.
Lies and deception are unofficial state policies in Tehran.

Can we trust a regime that routinely deceives its own people on issues as diverse as the state of the economy, Iranian history and human rights abuses? Is it wise to believe a government that regularly frames political, religious and ethnic critics on trumped-up charges?