About Bomb :
It happen on march at Banthat Thong Road :about 3x people injury and 1 death
at 7.00pm at Prathumwan intersection had and event to Memorial to the victims
About The protesters :
They come from multiple group of people with
-Hate Thaksin (arrogant,not respect the king,etc.)
-Hate Corruption
-Hate Amnesty bill
About Tourist :
IMHO now at this moment
recommend to walk at protest site and buy Souvenir , eat some street food
on the day time it's only few shop but at the evening more shops and more people look like thai temple festival
not recommend to march with protestor/suthep it's very risky to get any injury,anytime
About Transportation:
Recommend to use google map to identify traffic for car,cap transportation.

Sorry for my poor english