Why won't Israeli peace groups talk about the Nakba?

It’s 2015 and Israeli peace groups still refuse to
talk about the mass dispossession of Palestinians in 1948, including
those who became Israeli citizens. Tom Mehager says it is time for a
real conversation about the right of return.

Thousands
of Palestinian citizens of Israel take part in March of Return,in the
lands of the destroyed village of Hadatha, near Tiberias, April 23,
2015.