If the talks fail, there is uncertainty over what the US may do regarding a possible military attack against Iran, and when it might act. Questions remain over what this could mean for the wider region, with Iran warning it would retaliate and even attack Israel.
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But while group chats have exploded in popularity because of their informality, that also creates its own challenges: Discussions can veer off topic, repetitive or basic questions can irritate group members, and that viral meme you think is funny could also offend.
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