Additionally this is stupid.

Have access to the offender email?
-> Offender can encrypt all his emails. So that no-one would pose as him, nor anyone read his emails. Effect of having the password => absolutely none.

What kind of monitoring anyway?
-> Offender can open hundreds and hundreds of accounts, send the password, register to a huge amount of spam. He would comply with the rules, but who would have time to read/process the emails anyway???
-> Offender could change passwords of his accounts on a daily fashion or open an account every day.
-> Once email has been deleted, what good can "have the password" do. Let's say. A. Open new account on yahoo + send password B. Send email to prey, asking to reply on another email (not yet created). C. Erase traces of first email.... Seriously?

Totally ineffective way to achieve i don't know what.

J-1 visas are the way to go, but a company will not invest time if you are not planning to stay for at least 6 months...

I did this for a 6 months internship, in a small company in SC. They had some europeans employees (1 french, 1 german now naturalized) which helped the process. I did not know them personally but I tried to convince them that it would be a good idea to hire me...

In the end they wanted to keep me, but other visas that J-1 are hard to get. I ended up in a partner company in Germany for nearly 2 yrs, before I quitted for a much more interesting offer back in France.

Now I am planning to move to the UK, Canada or the US...