Senate Democrats propose four bills, what are they?

[DMK]

http://news.yahoo.com/separating-gun-control-bills-Democrats-reveal-strategy-233554019.html

The four bills now before the Judiciary Committee include one introduced by Democratic Senator Patrick Leahy of Vermont, the panel's chairman, that would crack down on illegal gun trafficking.
Another bill, by California Senator Barbara Boxer, is designed to increase school safety.
A bill, still being finalized, would call for "universal" background checks for all prospective gun buyers. Currently, only about 40 percent of buyers are screened for previous crimes or mental illness.
Feinstein's proposal, targets assault weapons and high-capacity ammunition clips

Does anyone know specifically what these four bills are?

Looks like it's time for more letter writing.